We look at the division of 91217654 by 668 
Let's see how many times 668 fits into 91217654.

Going ahead to step 1:
668 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 668

Moving on to step 2:
668 goes into 91 0 times with a remainder of 91.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Fetch the next digit (2) from the dividend, attach it to 91 and continue: 912 / 668

Step 3:
668 goes into 912 1 times with a remainder of 244.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 668 from 912, we get 244.
Append the next digit (1) from the dividend to 244 and continue with: 2441 / 668

Going ahead to step 4:
The number 668 fits into 2441 3 times, leaving a remainder of 437.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 2004 from 2441, we get 437.
Include the next digit (7) from the dividend after 437, then repeat: 4377 / 668

Moving on to step 5:
668 can be fit into 4377 6 times, resulting in a remainder of 369.
Put 6 as the next digit of the answer. 
Result so far: 136.0
Deduct 4008 from 4377 and we're left with 369.
Include the next digit (6) from the dividend after 369, then repeat: 3696 / 668

On to step 6:
If we divide 3696 by 668, we get 5 and a remainder of 356.
Record the quotient 5 as the next digit in the result. 
Result so far: 1365.0
Subtract 3340 from 3696 to get 356.
Take the next digit (5) from the dividend and append it to 356, then repeat: 3565 / 668

Moving on to step 7:
If we divide 3565 by 668, we get 5 and a remainder of 225.
Put 5 as the next digit of the answer. 
Result so far: 13655.0
If we subtract 3340 from 3565, we get 225.
Append the next digit (4) from the dividend to 225 and continue with: 2254 / 668

Moving on to step 8:
668 goes into 2254 3 times with a remainder of 250.
Write down 3 as next digit of the result. 
Result so far: 136553.0
The remainder is 250 after subtracting 2004 from 2254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 9:
2500 divided by 668 is 3 with a remainder of 496.
Record the quotient 3 as the next digit in the result. 
Result so far: 136553.3
Subtracting 2004 from 2500 leaves us with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Step 10:
668 can be fit into 4960 7 times, resulting in a remainder of 284.
Record the quotient 7 as the next digit in the result. 
Result so far: 136553.37
Subtracting 4676 from 4960 leaves us with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Advancing to step 11:
668 goes into 2840 4 times with a remainder of 168.
Write down 4 as next digit of the result. 
Result so far: 136553.374
If we subtract 2672 from 2840, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 12:
When dividing 1680 by 668, we get 2 with a remainder of 344.
The number 2 becomes the next digit in our result. 
Result so far: 136553.3742
Deduct 1336 from 1680 and we're left with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Step 13:
668 can be fit into 3440 5 times, resulting in a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 136553.37425
If we take 3340 away from 3440, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 14:
668 goes into 1000 1 times with a remainder of 332.
The next digit of our result is 1. 
Result so far: 136553.374251
If we take 668 away from 1000, we end up with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

On to step 15:
3320 divided by 668 is 4 with a remainder of 648.
Record the quotient 4 as the next digit in the result. 
Result so far: 136553.3742514
Deduct 2672 from 3320 and we're left with 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

Let's proceed to step 16:
When dividing 6480 by 668, we get 9 with a remainder of 468.
Record the quotient 9 as the next digit in the result. 
Result so far: 136553.37425149
Subtract 6012 from 6480 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

The quotient of the division is 136553.37425149, and the remainder is 4.68e-07.