86639676 divided by 4 
We want to divide 86639676 by 4.

Advancing to step 1:
4 can be fit into 8 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 2.0
If we take 8 away from 8, we end up with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 4

Advancing to step 2:
6 divided by 4 is 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we subtract 4 from 6, we get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 4

Going ahead to step 3:
The number 4 fits into 26 6 times, leaving a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 216.0
Subtracting 24 from 26 leaves us with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 4

Step 4:
If we divide 23 by 4, we get 5 and a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 2165.0
Deduct 20 from 23 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 4

On to step 5:
The number 4 fits into 39 9 times, leaving a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 21659.0
If we take 36 away from 39, we end up with 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 4

Step 6:
When dividing 36 by 4, we get 9 with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 216599.0
If we subtract 36 from 36, we get 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 4

Step 7:
The number 4 fits into 7 1 times, leaving a remainder of 3.
The next digit of our result is 1. 
Result so far: 2165991.0
Subtract 4 from 7 to get 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 4

Going ahead to step 8:
4 goes into 36 9 times with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 21659919.0
Subtract 36 from 36 to get 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:
If we divide 0 by 4, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21659919.0
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:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21659919.0
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.

In conclusion, the division gives 21659919.0 with a balance of 0.0.