Let's divide 86103659 by 715
We want to figure out the number of times 86103659 can be divided by 715.

On to step 1:
The number 715 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 715

Moving on to step 2:
When dividing 86 by 715, we get 0 with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Append the next digit (1) from the dividend to 86 and continue with: 861 / 715

On to step 3:
861 divided by 715 is 1 with a remainder of 146.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 715 from 861 and we're left with 146.
Take the next digit (0) from the dividend and append it to 146, then repeat: 1460 / 715

Moving on to step 4:
The number 715 fits into 1460 2 times, leaving a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 30 after subtracting 1430 from 1460.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 715

Let's proceed to step 5:
The number 715 fits into 303 0 times, leaving a remainder of 303.
Use 0 as the next digit of our solution. 
Result so far: 120.0
Subtracting 0 from 303 leaves us with 303.
Fetch the next digit (6) from the dividend, attach it to 303 and continue: 3036 / 715

Let's proceed to step 6:
The number 715 fits into 3036 4 times, leaving a remainder of 176.
The next digit of our result is 4. 
Result so far: 1204.0
The remainder is 176 after subtracting 2860 from 3036.
Fetch the next digit (5) from the dividend, attach it to 176 and continue: 1765 / 715

Step 7:
If we divide 1765 by 715, we get 2 and a remainder of 335.
The next digit of our result is 2. 
Result so far: 12042.0
The remainder is 335 after subtracting 1430 from 1765.
Append the next digit (9) from the dividend to 335 and continue with: 3359 / 715

Advancing to step 8:
715 goes into 3359 4 times with a remainder of 499.
The number 4 becomes the next digit in our result. 
Result so far: 120424.0
If we subtract 2860 from 3359, we get 499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

Going ahead to step 9:
715 goes into 4990 6 times with a remainder of 700.
Put 6 as the next digit of the answer. 
Result so far: 120424.6
Subtracting 4290 from 4990 leaves us with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 10:
715 goes into 7000 9 times with a remainder of 565.
Use 9 as the next digit of our solution. 
Result so far: 120424.69
The remainder is 565 after subtracting 6435 from 7000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

On to step 11:
715 can be fit into 5650 7 times, resulting in a remainder of 645.
The next digit of our result is 7. 
Result so far: 120424.697
If we subtract 5005 from 5650, we get 645.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6450, and continue the process.

Let's proceed to step 12:
If we divide 6450 by 715, we get 9 and a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 120424.6979
Subtracting 6435 from 6450 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 13:
If we divide 150 by 715, we get 0 and a remainder of 150.
The next digit of our result is 0. 
Result so far: 120424.6979
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 14:
715 can be fit into 1500 2 times, resulting in a remainder of 70.
Write down 2 as next digit of the result. 
Result so far: 120424.697902
The remainder is 70 after subtracting 1430 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 15:
715 goes into 700 0 times with a remainder of 700.
Write down 0 as next digit of the result. 
Result so far: 120424.697902
If we subtract 0 from 700, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 16:
When dividing 7000 by 715, we get 9 with a remainder of 565.
Put 9 as the next digit of the answer. 
Result so far: 120424.69790209
Subtract 6435 from 7000 to get 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Our division results in 120424.69790209 with a remaining 5.65e-07.