79103389 ÷ 817 
We're looking to find how many times 817 goes into 79103389.

Step 1:
817 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 817

Advancing to step 2:
817 can be fit into 79 0 times, resulting in a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 79 and we're left with 79.
Fetch the next digit (1) from the dividend, attach it to 79 and continue: 791 / 817

Advancing to step 3:
The number 817 fits into 791 0 times, leaving a remainder of 791.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 791 after subtracting 0 from 791.
Bring next digit (0) of the dividend behind the 791 and repeat the process: 7910 / 817

Going ahead to step 4:
If we divide 7910 by 817, we get 9 and a remainder of 557.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 7353 from 7910, we get 557.
Append the next digit (3) from the dividend to 557 and continue with: 5573 / 817

Let's proceed to step 5:
The number 817 fits into 5573 6 times, leaving a remainder of 671.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
If we subtract 4902 from 5573, we get 671.
Grab the next digit (3) from the dividend, add it to 671, then carry on: 6713 / 817

Advancing to step 6:
When dividing 6713 by 817, we get 8 with a remainder of 177.
Write down 8 as next digit of the result. 
Result so far: 968.0
The remainder is 177 after subtracting 6536 from 6713.
Bring next digit (8) of the dividend behind the 177 and repeat the process: 1778 / 817

On to step 7:
The number 817 fits into 1778 2 times, leaving a remainder of 144.
Use 2 as the next digit of our solution. 
Result so far: 9682.0
The remainder is 144 after subtracting 1634 from 1778.
Append the next digit (9) from the dividend to 144 and continue with: 1449 / 817

Going ahead to step 8:
The number 817 fits into 1449 1 times, leaving a remainder of 632.
Put 1 as the next digit of the answer. 
Result so far: 96821.0
If we take 817 away from 1449, we end up with 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

On to step 9:
If we divide 6320 by 817, we get 7 and a remainder of 601.
The next digit of our result is 7. 
Result so far: 96821.7
Subtracting 5719 from 6320 leaves us with 601.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

Let's proceed to step 10:
When dividing 6010 by 817, we get 7 with a remainder of 291.
The next digit of our result is 7. 
Result so far: 96821.77
If we subtract 5719 from 6010, we get 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

The quotient of the division is 96821.77, and the remainder is 0.291.