663109 divided by 91 
Our goal is to divide 663109 by 91.

Step 1:
91 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 91

Moving on to step 2:
66 divided by 91 is 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Append the next digit (3) from the dividend to 66 and continue with: 663 / 91

Moving on to step 3:
91 goes into 663 7 times with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 637 from 663 leaves us with 26.
Take the next digit (1) from the dividend and append it to 26, then repeat: 261 / 91

Let's proceed to step 4:
91 goes into 261 2 times with a remainder of 79.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we subtract 182 from 261, we get 79.
Include the next digit (0) from the dividend after 79, then repeat: 790 / 91

Going ahead to step 5:
If we divide 790 by 91, we get 8 and a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 728.0
The remainder is 62 after subtracting 728 from 790.
Include the next digit (9) from the dividend after 62, then repeat: 629 / 91

Moving on to step 6:
The number 91 fits into 629 6 times, leaving a remainder of 83.
The next digit of our result is 6. 
Result so far: 7286.0
The remainder is 83 after subtracting 546 from 629.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 7:
830 divided by 91 is 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 7286.9
Deduct 819 from 830 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 8:
The number 91 fits into 110 1 times, leaving a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 7286.91
The remainder is 19 after subtracting 91 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
91 goes into 190 2 times with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 7286.912
The remainder is 8 after subtracting 182 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
91 can be fit into 80 0 times, resulting in a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 7286.912
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 11:
91 can be fit into 800 8 times, resulting in a remainder of 72.
The next digit of our result is 8. 
Result so far: 7286.91208
Subtract 728 from 800 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 12:
91 can be fit into 720 7 times, resulting in a remainder of 83.
The number 7 becomes the next digit in our result. 
Result so far: 7286.912087
The remainder is 83 after subtracting 637 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

On to step 13:
The number 91 fits into 830 9 times, leaving a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 7286.9120879
Subtracting 819 from 830 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 14:
110 divided by 91 is 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 7286.91208791
Subtract 91 from 110 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The quotient of the division is 7286.91208791, and the remainder is 1.9e-08.