We're dividing 86966080 by 4 
We want to divide 86966080 by 4.

Let's proceed to step 1:
4 goes into 8 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 8 from 8 and we're left with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 4

Moving on to step 2:
4 can be fit into 6 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Deduct 4 from 6 and we're left with 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 4

Advancing to step 3:
When dividing 29 by 4, we get 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 217.0
If we subtract 28 from 29, we get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 4

Moving on to step 4:
4 can be fit into 16 4 times, resulting in a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 2174.0
Subtracting 16 from 16 leaves us with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 4

Going ahead to step 5:
The number 4 fits into 6 1 times, leaving a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 21741.0
Subtract 4 from 6 to get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 4

Going ahead to step 6:
If we divide 20 by 4, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 217415.0
Subtracting 20 from 20 leaves us with 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 4

On to step 7:
8 divided by 4 is 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2174152.0
The remainder is 0 after subtracting 8 from 8.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 4

On to step 8:
0 divided by 4 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21741520.0
Subtracting 0 from 0 leaves us 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.

Going ahead to step 9:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 21741520.0
If we take 0 away from 0, 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.

On to step 10:
If we divide 0 by 4, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 21741520.0
Deduct 0 from 0 and we're left 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 21741520.0, with a leftover of 0.0.