We're dividing 63660777 by 91 
We're looking to find how many times 91 goes into 63660777.

Step 1:
When dividing 6 by 91, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 91

Let's proceed to step 2:
91 goes into 63 0 times with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Append the next digit (6) from the dividend to 63 and continue with: 636 / 91

Let's proceed to step 3:
91 goes into 636 6 times with a remainder of 90.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 546 away from 636, we end up with 90.
Grab the next digit (6) from the dividend, add it to 90, then carry on: 906 / 91

Advancing to step 4:
91 goes into 906 9 times with a remainder of 87.
The number 9 becomes the next digit in our result. 
Result so far: 69.0
Deduct 819 from 906 and we're left with 87.
Bring next digit (0) of the dividend behind the 87 and repeat the process: 870 / 91

Step 5:
The number 91 fits into 870 9 times, leaving a remainder of 51.
The next digit of our result is 9. 
Result so far: 699.0
The remainder is 51 after subtracting 819 from 870.
Grab the next digit (7) from the dividend, add it to 51, then carry on: 517 / 91

On to step 6:
91 goes into 517 5 times with a remainder of 62.
Use 5 as the next digit of our solution. 
Result so far: 6995.0
The remainder is 62 after subtracting 455 from 517.
Take the next digit (7) from the dividend and append it to 62, then repeat: 627 / 91

Going ahead to step 7:
When dividing 627 by 91, we get 6 with a remainder of 81.
The next digit of our result is 6. 
Result so far: 69956.0
The remainder is 81 after subtracting 546 from 627.
Fetch the next digit (7) from the dividend, attach it to 81 and continue: 817 / 91

On to step 8:
91 goes into 817 8 times with a remainder of 89.
Put 8 as the next digit of the answer. 
Result so far: 699568.0
Deduct 728 from 817 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

On to step 9:
The number 91 fits into 890 9 times, leaving a remainder of 71.
Write down 9 as next digit of the result. 
Result so far: 699568.9
Deduct 819 from 890 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 10:
91 can be fit into 710 7 times, resulting in a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 699568.97
If we subtract 637 from 710, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Let's proceed to step 11:
730 divided by 91 is 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 699568.978
Deduct 728 from 730 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
91 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 699568.978
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
200 divided by 91 is 2 with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 699568.97802
The remainder is 18 after subtracting 182 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 14:
91 can be fit into 180 1 times, resulting in a remainder of 89.
Record the quotient 1 as the next digit in the result. 
Result so far: 699568.978021
If we take 91 away from 180, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Going ahead to step 15:
890 divided by 91 is 9 with a remainder of 71.
The next digit of our result is 9. 
Result so far: 699568.9780219
Deduct 819 from 890 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 16:
710 divided by 91 is 7 with a remainder of 73.
The next digit of our result is 7. 
Result so far: 699568.97802197
Deduct 637 from 710 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

After the division, we end up with 699568.97802197 and a remainder of 7.3e-08.