We divide 138751 by 91
We want to figure out the number of times 138751 can be divided by 91.

Step 1:
If we divide 1 by 91, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 91

On to step 2:
When dividing 13 by 91, we get 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 91

Advancing to step 3:
The number 91 fits into 138 1 times, leaving a remainder of 47.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 91 from 138 and we're left with 47.
Take the next digit (7) from the dividend and append it to 47, then repeat: 477 / 91

Advancing to step 4:
If we divide 477 by 91, we get 5 and a remainder of 22.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 455 away from 477, we end up with 22.
Bring next digit (5) of the dividend behind the 22 and repeat the process: 225 / 91

Let's proceed to step 5:
If we divide 225 by 91, we get 2 and a remainder of 43.
Put 2 as the next digit of the answer. 
Result so far: 152.0
Deduct 182 from 225 and we're left with 43.
Append the next digit (1) from the dividend to 43 and continue with: 431 / 91

Let's proceed to step 6:
If we divide 431 by 91, we get 4 and a remainder of 67.
Write down 4 as next digit of the result. 
Result so far: 1524.0
Subtracting 364 from 431 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 7:
The number 91 fits into 670 7 times, leaving a remainder of 33.
The next digit of our result is 7. 
Result so far: 1524.7
The remainder is 33 after subtracting 637 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 8:
91 goes into 330 3 times with a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 1524.73
The remainder is 57 after subtracting 273 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 9:
If we divide 570 by 91, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 1524.736
If we take 546 away from 570, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
The number 91 fits into 240 2 times, leaving a remainder of 58.
Record the quotient 2 as the next digit in the result. 
Result so far: 1524.7362
Subtract 182 from 240 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 11:
The number 91 fits into 580 6 times, leaving a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 1524.73626
Subtract 546 from 580 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 12:
The number 91 fits into 340 3 times, leaving a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 1524.736263
If we subtract 273 from 340, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 13:
91 can be fit into 670 7 times, resulting in a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 1524.7362637
Subtract 637 from 670 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 14:
91 goes into 330 3 times with a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 1524.73626373
Subtracting 273 from 330 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Our division results in 1524.73626373 with a remaining 5.7e-08.