90109713 divided by 660 
We want to divide 90109713 by 660.

Going ahead to step 1:
If we divide 9 by 660, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 660

On to step 2:
If we divide 90 by 660, we get 0 and a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Take the next digit (1) from the dividend and append it to 90, then repeat: 901 / 660

Advancing to step 3:
If we divide 901 by 660, we get 1 and a remainder of 241.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 660 from 901, we get 241.
Grab the next digit (0) from the dividend, add it to 241, then carry on: 2410 / 660

Moving on to step 4:
660 goes into 2410 3 times with a remainder of 430.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtracting 1980 from 2410 leaves us with 430.
Grab the next digit (9) from the dividend, add it to 430, then carry on: 4309 / 660

Advancing to step 5:
When dividing 4309 by 660, we get 6 with a remainder of 349.
The number 6 becomes the next digit in our result. 
Result so far: 136.0
The remainder is 349 after subtracting 3960 from 4309.
Append the next digit (7) from the dividend to 349 and continue with: 3497 / 660

Step 6:
If we divide 3497 by 660, we get 5 and a remainder of 197.
Record the quotient 5 as the next digit in the result. 
Result so far: 1365.0
Subtracting 3300 from 3497 leaves us with 197.
Take the next digit (1) from the dividend and append it to 197, then repeat: 1971 / 660

Let's proceed to step 7:
1971 divided by 660 is 2 with a remainder of 651.
The number 2 becomes the next digit in our result. 
Result so far: 13652.0
Deduct 1320 from 1971 and we're left with 651.
Fetch the next digit (3) from the dividend, attach it to 651 and continue: 6513 / 660

Moving on to step 8:
When dividing 6513 by 660, we get 9 with a remainder of 573.
Put 9 as the next digit of the answer. 
Result so far: 136529.0
If we subtract 5940 from 6513, we get 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Advancing to step 9:
When dividing 5730 by 660, we get 8 with a remainder of 450.
Use 8 as the next digit of our solution. 
Result so far: 136529.8
If we subtract 5280 from 5730, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 10:
4500 divided by 660 is 6 with a remainder of 540.
Record the quotient 6 as the next digit in the result. 
Result so far: 136529.86
The remainder is 540 after subtracting 3960 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Let's proceed to step 11:
When dividing 5400 by 660, we get 8 with a remainder of 120.
The next digit of our result is 8. 
Result so far: 136529.868
Deduct 5280 from 5400 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 12:
660 goes into 1200 1 times with a remainder of 540.
The next digit of our result is 1. 
Result so far: 136529.8681
Subtract 660 from 1200 to get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Advancing to step 13:
If we divide 5400 by 660, we get 8 and a remainder of 120.
Write down 8 as next digit of the result. 
Result so far: 136529.86818
Subtracting 5280 from 5400 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 14:
When dividing 1200 by 660, we get 1 with a remainder of 540.
The next digit of our result is 1. 
Result so far: 136529.868181
Subtracting 660 from 1200 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 15:
660 goes into 5400 8 times with a remainder of 120.
Write down 8 as next digit of the result. 
Result so far: 136529.8681818
If we subtract 5280 from 5400, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 16:
If we divide 1200 by 660, we get 1 and a remainder of 540.
Put 1 as the next digit of the answer. 
Result so far: 136529.86818181
Deduct 660 from 1200 and we're left with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

After the division, we end up with 136529.86818181 and a remainder of 5.4e-07.