Let's divide 12478961 by 220
We want to divide 12478961 by 220.

Moving on to step 1:
The number 220 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 220

Let's proceed to step 2:
220 goes into 12 0 times with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 220

On to step 3:
If we divide 124 by 220, we get 0 and a remainder of 124.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 124 leaves us with 124.
Bring next digit (7) of the dividend behind the 124 and repeat the process: 1247 / 220

Going ahead to step 4:
When dividing 1247 by 220, we get 5 with a remainder of 147.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 147 after subtracting 1100 from 1247.
Bring next digit (8) of the dividend behind the 147 and repeat the process: 1478 / 220

Advancing to step 5:
If we divide 1478 by 220, we get 6 and a remainder of 158.
Record the quotient 6 as the next digit in the result. 
Result so far: 56.0
If we subtract 1320 from 1478, we get 158.
Bring next digit (9) of the dividend behind the 158 and repeat the process: 1589 / 220

Let's proceed to step 6:
1589 divided by 220 is 7 with a remainder of 49.
Write down 7 as next digit of the result. 
Result so far: 567.0
If we take 1540 away from 1589, we end up with 49.
Grab the next digit (6) from the dividend, add it to 49, then carry on: 496 / 220

On to step 7:
If we divide 496 by 220, we get 2 and a remainder of 56.
Put 2 as the next digit of the answer. 
Result so far: 5672.0
If we take 440 away from 496, we end up with 56.
Append the next digit (1) from the dividend to 56 and continue with: 561 / 220

Let's proceed to step 8:
220 goes into 561 2 times with a remainder of 121.
Record the quotient 2 as the next digit in the result. 
Result so far: 56722.0
Deduct 440 from 561 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Going ahead to step 9:
The number 220 fits into 1210 5 times, leaving a remainder of 110.
Write down 5 as next digit of the result. 
Result so far: 56722.5
Subtract 1100 from 1210 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 10:
When dividing 1100 by 220, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 56722.55
If we take 1100 away from 1100, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 56722.55, with a leftover of 0.0.