 So this time we'll try working with some slightly larger numbers. So if I use 100,000 divided by 10 in decimal, then I know I should get 10,000 out. I'll start with my 100,000, just copied from my number line. And I am going to divide by 10. So I will scroll up, I'll see 10 is 10, 10 in binary. And I should expect to get 10,000 out. And so I will draw some guidelines for myself. I will start by pointing out that I have a 4-bit number here. It's not going to subtract into anything smaller than another 4-bit number. So I don't really need to bother looking at say this position or this position or even this one. I can just skip to where I have 4 bits and see which one is larger. In this case, this number is larger than this one. So I can do the subtraction here. So 0 minus 0 is 0. I'll need to borrow here. So 10 minus 1 is 1. And then I have 10 minus 10 is 0. Next I'll pull down a 0. Now I'm back to a 3-bit number. So a 4-bit number will not go into a 3-bit number. So I'll just write down a 0. Pull down the next 0. Now I have 1,000 and I have 1,010 here. So this number is bigger than this one. So I won't be able to do the subtraction again. Write down a 0. Pull down the 1. Now I have a 5-bit number and I'm trying to subtract a 4-bit number. So I know the 4-bit number will always be smaller than the 5-bit number. So here I know I can do the subtraction. So 1 minus 0 is 1. 0 minus 1. Lots of borrowing to be done here. 10, I'll borrow from that. There's another 10 to borrow. Now I've got something I can work with. So 10 minus 1 is 1. 1 minus 0 is 1. And 1 minus 1 is 0. And 0 minus 0 is 0. So now I'll bring down my next bit, which is a 1. Now I've got a block of all 1s. So this will obviously go into it. So I'll write down a 1 there. Do my subtraction. Get 101 out. Pull down my next bit. And I have 10, 10 and 10, 10. So those obviously match up with 0. Now I've come back to a 0-bit number. So I'm just going to wait until I've got 4 bits again. And now I've pulled down all... This case I would have pulled down the entire 10, 10. So now I have a 4-bit number which matches up with the 4-bit number I've got up here. So I can subtract 10, 10. This, of course, leaves me with 0. So pulling down more 0s won't change anything. And I will just fill out the last 4 bits of 0s. Now I can compare this to my 10,000. I've got 10, 0, 1, 1, 1, 0, 0, 0, 1, and 0. So it's my division. Match up with what I expect to see here.