Let's divide 28439767 by 91
We want to divide 28439767 by 91.

Advancing to step 1:
If we divide 2 by 91, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 91

Let's proceed to step 2:
28 divided by 91 is 0 with a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Take the next digit (4) from the dividend and append it to 28, then repeat: 284 / 91

Step 3:
91 can be fit into 284 3 times, resulting in a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 273 from 284 leaves us with 11.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 91

Advancing to step 4:
113 divided by 91 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Subtracting 91 from 113 leaves us with 22.
Include the next digit (9) from the dividend after 22, then repeat: 229 / 91

Moving on to step 5:
If we divide 229 by 91, we get 2 and a remainder of 47.
The number 2 becomes the next digit in our result. 
Result so far: 312.0
If we subtract 182 from 229, we get 47.
Include the next digit (7) from the dividend after 47, then repeat: 477 / 91

Let's proceed to step 6:
91 can be fit into 477 5 times, resulting in a remainder of 22.
The number 5 becomes the next digit in our result. 
Result so far: 3125.0
Deduct 455 from 477 and we're left with 22.
Bring next digit (6) of the dividend behind the 22 and repeat the process: 226 / 91

Let's proceed to step 7:
When dividing 226 by 91, we get 2 with a remainder of 44.
Put 2 as the next digit of the answer. 
Result so far: 31252.0
The remainder is 44 after subtracting 182 from 226.
Fetch the next digit (7) from the dividend, attach it to 44 and continue: 447 / 91

Step 8:
When dividing 447 by 91, we get 4 with a remainder of 83.
Record the quotient 4 as the next digit in the result. 
Result so far: 312524.0
Subtracting 364 from 447 leaves us with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Moving on to step 9:
When dividing 830 by 91, we get 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 312524.9
Subtract 819 from 830 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 10:
When dividing 110 by 91, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 312524.91
Subtracting 91 from 110 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 11:
91 goes into 190 2 times with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 312524.912
If we subtract 182 from 190, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
When dividing 80 by 91, we get 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 312524.912
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 13:
The number 91 fits into 800 8 times, leaving a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 312524.91208
Deduct 728 from 800 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 14:
91 can be fit into 720 7 times, resulting in a remainder of 83.
Put 7 as the next digit of the answer. 
Result so far: 312524.912087
Deduct 637 from 720 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Let's proceed to step 15:
If we divide 830 by 91, we get 9 and a remainder of 11.
The next digit of our result is 9. 
Result so far: 312524.9120879
Subtract 819 from 830 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 16:
91 goes into 110 1 times with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 312524.91208791
Subtracting 91 from 110 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Our division results in 312524.91208791 with a remaining 1.9e-08.