86690610 ÷ 715 
Our goal is to divide 86690610 by 715.

Advancing to step 1:
8 divided by 715 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 715

Going ahead to step 2:
The number 715 fits into 86 0 times, leaving a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Grab the next digit (6) from the dividend, add it to 86, then carry on: 866 / 715

Advancing to step 3:
The number 715 fits into 866 1 times, leaving a remainder of 151.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 715 from 866 and we're left with 151.
Grab the next digit (9) from the dividend, add it to 151, then carry on: 1519 / 715

Going ahead to step 4:
When dividing 1519 by 715, we get 2 with a remainder of 89.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 1430 from 1519 and we're left with 89.
Include the next digit (0) from the dividend after 89, then repeat: 890 / 715

Advancing to step 5:
The number 715 fits into 890 1 times, leaving a remainder of 175.
Write down 1 as next digit of the result. 
Result so far: 121.0
Subtract 715 from 890 to get 175.
Take the next digit (6) from the dividend and append it to 175, then repeat: 1756 / 715

On to step 6:
1756 divided by 715 is 2 with a remainder of 326.
Put 2 as the next digit of the answer. 
Result so far: 1212.0
The remainder is 326 after subtracting 1430 from 1756.
Bring next digit (1) of the dividend behind the 326 and repeat the process: 3261 / 715

Going ahead to step 7:
The number 715 fits into 3261 4 times, leaving a remainder of 401.
Record the quotient 4 as the next digit in the result. 
Result so far: 12124.0
Subtracting 2860 from 3261 leaves us with 401.
Fetch the next digit (0) from the dividend, attach it to 401 and continue: 4010 / 715

Moving on to step 8:
715 goes into 4010 5 times with a remainder of 435.
Write down 5 as next digit of the result. 
Result so far: 121245.0
Subtracting 3575 from 4010 leaves us with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Step 9:
When dividing 4350 by 715, we get 6 with a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 121245.6
The remainder is 60 after subtracting 4290 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 10:
If we divide 600 by 715, we get 0 and a remainder of 600.
Record the quotient 0 as the next digit in the result. 
Result so far: 121245.6
If we take 0 away from 600, we end up with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 11:
The number 715 fits into 6000 8 times, leaving a remainder of 280.
Put 8 as the next digit of the answer. 
Result so far: 121245.608
Subtracting 5720 from 6000 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 12:
715 can be fit into 2800 3 times, resulting in a remainder of 655.
The next digit of our result is 3. 
Result so far: 121245.6083
Subtract 2145 from 2800 to get 655.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6550, and continue the process.

Let's proceed to step 13:
The number 715 fits into 6550 9 times, leaving a remainder of 115.
Record the quotient 9 as the next digit in the result. 
Result so far: 121245.60839
Subtract 6435 from 6550 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 14:
The number 715 fits into 1150 1 times, leaving a remainder of 435.
The next digit of our result is 1. 
Result so far: 121245.608391
Deduct 715 from 1150 and we're left with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

On to step 15:
If we divide 4350 by 715, we get 6 and a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 121245.6083916
Subtract 4290 from 4350 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 16:
The number 715 fits into 600 0 times, leaving a remainder of 600.
Put 0 as the next digit of the answer. 
Result so far: 121245.6083916
Subtract 0 from 600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The quotient of the division is 121245.6083916, and the remainder is 6e-07.