We divide 666644 by 91
Let's see how many times 91 fits into 666644.

Advancing to step 1:
If we divide 6 by 91, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
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:
91 goes into 66 0 times with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Fetch the next digit (6) from the dividend, attach it to 66 and continue: 666 / 91

Step 3:
The number 91 fits into 666 7 times, leaving a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 29 after subtracting 637 from 666.
Include the next digit (6) from the dividend after 29, then repeat: 296 / 91

Advancing to step 4:
When dividing 296 by 91, we get 3 with a remainder of 23.
Use 3 as the next digit of our solution. 
Result so far: 73.0
If we take 273 away from 296, we end up with 23.
Take the next digit (4) from the dividend and append it to 23, then repeat: 234 / 91

Step 5:
When dividing 234 by 91, we get 2 with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 732.0
The remainder is 52 after subtracting 182 from 234.
Fetch the next digit (4) from the dividend, attach it to 52 and continue: 524 / 91

Going ahead to step 6:
91 goes into 524 5 times with a remainder of 69.
Record the quotient 5 as the next digit in the result. 
Result so far: 7325.0
Subtract 455 from 524 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 7:
The number 91 fits into 690 7 times, leaving a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 7325.7
If we take 637 away from 690, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 8:
91 can be fit into 530 5 times, resulting in a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 7325.75
If we subtract 455 from 530, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 9:
The number 91 fits into 750 8 times, leaving a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 7325.758
If we subtract 728 from 750, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 10:
When dividing 220 by 91, we get 2 with a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 7325.7582
Subtract 182 from 220 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 11:
91 goes into 380 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 7325.75824
Subtract 364 from 380 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 12:
When dividing 160 by 91, we get 1 with a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 7325.758241
Deduct 91 from 160 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 13:
690 divided by 91 is 7 with a remainder of 53.
The next digit of our result is 7. 
Result so far: 7325.7582417
The remainder is 53 after subtracting 637 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 14:
530 divided by 91 is 5 with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 7325.75824175
If we take 455 away from 530, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

After the division, we end up with 7325.75824175 and a remainder of 7.5e-08.