We're dividing 661976 by 91 
We want to figure out the number of times 661976 can be divided by 91.

Advancing to step 1:
91 can be fit into 6 0 times, resulting in 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.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 91

Going ahead to step 2:
91 can be fit into 66 0 times, resulting in a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 91

Advancing to step 3:
When dividing 661 by 91, we get 7 with a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 637 away from 661, we end up with 24.
Fetch the next digit (9) from the dividend, attach it to 24 and continue: 249 / 91

On to step 4:
The number 91 fits into 249 2 times, leaving a remainder of 67.
Use 2 as the next digit of our solution. 
Result so far: 72.0
The remainder is 67 after subtracting 182 from 249.
Take the next digit (7) from the dividend and append it to 67, then repeat: 677 / 91

On to step 5:
The number 91 fits into 677 7 times, leaving a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 727.0
The remainder is 40 after subtracting 637 from 677.
Grab the next digit (6) from the dividend, add it to 40, then carry on: 406 / 91

Moving on to step 6:
406 divided by 91 is 4 with a remainder of 42.
Record the quotient 4 as the next digit in the result. 
Result so far: 7274.0
If we take 364 away from 406, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 7:
When dividing 420 by 91, we get 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 7274.4
Subtracting 364 from 420 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 8:
When dividing 560 by 91, we get 6 with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 7274.46
If we take 546 away from 560, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
140 divided by 91 is 1 with a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 7274.461
Subtracting 91 from 140 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 10:
91 can be fit into 490 5 times, resulting in a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 7274.4615
Deduct 455 from 490 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 11:
91 can be fit into 350 3 times, resulting in a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 7274.46153
Subtract 273 from 350 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 12:
91 goes into 770 8 times with a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 7274.461538
If we take 728 away from 770, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 13:
91 goes into 420 4 times with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 7274.4615384
Subtracting 364 from 420 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 14:
If we divide 560 by 91, we get 6 and a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 7274.46153846
Subtracting 546 from 560 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final outcome is 7274.46153846, with a leftover of 1.4e-08.