479988 divided by 91 
We want to figure out the number of times 479988 can be divided by 91.

On to step 1:
When dividing 4 by 91, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 91

Advancing to step 2:
If we divide 47 by 91, we get 0 and a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 47, we end up with 47.
Append the next digit (9) from the dividend to 47 and continue with: 479 / 91

Advancing to step 3:
479 divided by 91 is 5 with a remainder of 24.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 24 after subtracting 455 from 479.
Bring next digit (9) of the dividend behind the 24 and repeat the process: 249 / 91

Advancing to step 4:
When dividing 249 by 91, we get 2 with a remainder of 67.
Use 2 as the next digit of our solution. 
Result so far: 52.0
If we subtract 182 from 249, we get 67.
Bring next digit (8) of the dividend behind the 67 and repeat the process: 678 / 91

Moving on to step 5:
When dividing 678 by 91, we get 7 with a remainder of 41.
The next digit of our result is 7. 
Result so far: 527.0
If we subtract 637 from 678, we get 41.
Bring next digit (8) of the dividend behind the 41 and repeat the process: 418 / 91

Step 6:
When dividing 418 by 91, we get 4 with a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 5274.0
The remainder is 54 after subtracting 364 from 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
If we divide 540 by 91, we get 5 and a remainder of 85.
The next digit of our result is 5. 
Result so far: 5274.5
Deduct 455 from 540 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 8:
91 can be fit into 850 9 times, resulting in a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 5274.59
If we take 819 away from 850, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 9:
91 can be fit into 310 3 times, resulting in a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 5274.593
The remainder is 37 after subtracting 273 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 10:
The number 91 fits into 370 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 5274.5934
Subtract 364 from 370 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
When dividing 60 by 91, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 5274.5934
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
91 goes into 600 6 times with a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 5274.593406
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 13:
91 can be fit into 540 5 times, resulting in a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 5274.5934065
If we take 455 away from 540, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 14:
When dividing 850 by 91, we get 9 with a remainder of 31.
The next digit of our result is 9. 
Result so far: 5274.59340659
Subtracting 819 from 850 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

After the division, we end up with 5274.59340659 and a remainder of 3.1e-08.