39580883 ÷ 91 
We want to figure out the number of times 39580883 can be divided by 91.

Moving on to step 1:
91 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 91

Step 2:
The number 91 fits into 39 0 times, leaving a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Append the next digit (5) from the dividend to 39 and continue with: 395 / 91

Let's proceed to step 3:
91 can be fit into 395 4 times, resulting in a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 364 from 395 to get 31.
Include the next digit (8) from the dividend after 31, then repeat: 318 / 91

Going ahead to step 4:
If we divide 318 by 91, we get 3 and a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 43.0
The remainder is 45 after subtracting 273 from 318.
Grab the next digit (0) from the dividend, add it to 45, then carry on: 450 / 91

Step 5:
91 goes into 450 4 times with a remainder of 86.
Record the quotient 4 as the next digit in the result. 
Result so far: 434.0
Deduct 364 from 450 and we're left with 86.
Grab the next digit (8) from the dividend, add it to 86, then carry on: 868 / 91

On to step 6:
If we divide 868 by 91, we get 9 and a remainder of 49.
The number 9 becomes the next digit in our result. 
Result so far: 4349.0
Subtract 819 from 868 to get 49.
Append the next digit (8) from the dividend to 49 and continue with: 498 / 91

Going ahead to step 7:
If we divide 498 by 91, we get 5 and a remainder of 43.
Use 5 as the next digit of our solution. 
Result so far: 43495.0
If we subtract 455 from 498, we get 43.
Take the next digit (3) from the dividend and append it to 43, then repeat: 433 / 91

Step 8:
433 divided by 91 is 4 with a remainder of 69.
The number 4 becomes the next digit in our result. 
Result so far: 434954.0
If we take 364 away from 433, we end up 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.

Going ahead to step 9:
91 can be fit into 690 7 times, resulting in a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 434954.7
Subtract 637 from 690 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 10:
If we divide 530 by 91, we get 5 and a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 434954.75
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.

On to step 11:
When dividing 750 by 91, we get 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 434954.758
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.

Step 12:
220 divided by 91 is 2 with a remainder of 38.
The next digit of our result is 2. 
Result so far: 434954.7582
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.

Let's proceed to step 13:
91 can be fit into 380 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 434954.75824
Subtracting 364 from 380 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
If we divide 160 by 91, we get 1 and a remainder of 69.
Record the quotient 1 as the next digit in the result. 
Result so far: 434954.758241
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.

Advancing to step 15:
690 divided by 91 is 7 with a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 434954.7582417
Deduct 637 from 690 and we're left 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.

Advancing to step 16:
The number 91 fits into 530 5 times, leaving a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 434954.75824175
The remainder is 75 after subtracting 455 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The quotient of the division is 434954.75824175, and the remainder is 7.5e-08.