We look at the division of 666860 by 91 
We want to divide 666860 by 91.

Going ahead to step 1:
91 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 91

Step 2:
91 goes into 66 0 times with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Grab the next digit (6) from the dividend, add it to 66, then carry on: 666 / 91

Advancing to step 3:
When dividing 666 by 91, we get 7 with a remainder of 29.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 637 from 666 to get 29.
Fetch the next digit (8) from the dividend, attach it to 29 and continue: 298 / 91

Advancing to step 4:
When dividing 298 by 91, we get 3 with a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 73.0
If we subtract 273 from 298, we get 25.
Fetch the next digit (6) from the dividend, attach it to 25 and continue: 256 / 91

Step 5:
When dividing 256 by 91, we get 2 with a remainder of 74.
Record the quotient 2 as the next digit in the result. 
Result so far: 732.0
The remainder is 74 after subtracting 182 from 256.
Fetch the next digit (0) from the dividend, attach it to 74 and continue: 740 / 91

Advancing to step 6:
740 divided by 91 is 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 7328.0
Subtracting 728 from 740 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 7:
The number 91 fits into 120 1 times, leaving a remainder of 29.
The next digit of our result is 1. 
Result so far: 7328.1
If we subtract 91 from 120, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 8:
91 goes into 290 3 times with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 7328.13
Deduct 273 from 290 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 9:
If we divide 170 by 91, we get 1 and a remainder of 79.
Use 1 as the next digit of our solution. 
Result so far: 7328.131
The remainder is 79 after subtracting 91 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 10:
If we divide 790 by 91, we get 8 and a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 7328.1318
If we take 728 away from 790, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 11:
If we divide 620 by 91, we get 6 and a remainder of 74.
Record the quotient 6 as the next digit in the result. 
Result so far: 7328.13186
Deduct 546 from 620 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 12:
91 goes into 740 8 times with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 7328.131868
The remainder is 12 after subtracting 728 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 13:
When dividing 120 by 91, we get 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 7328.1318681
Subtract 91 from 120 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 14:
290 divided by 91 is 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 7328.13186813
Subtract 273 from 290 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The quotient of the division is 7328.13186813, and the remainder is 1.7e-08.