138836 divided by 91 
Let's see how many times 91 fits into 138836.

Moving on to step 1:
91 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 91

On to step 2:
91 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 91

On to step 3:
The number 91 fits into 138 1 times, leaving a remainder of 47.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 91 from 138 leaves us with 47.
Include the next digit (8) from the dividend after 47, then repeat: 478 / 91

On to step 4:
91 can be fit into 478 5 times, resulting in a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Deduct 455 from 478 and we're left with 23.
Take the next digit (3) from the dividend and append it to 23, then repeat: 233 / 91

On to step 5:
When dividing 233 by 91, we get 2 with a remainder of 51.
Use 2 as the next digit of our solution. 
Result so far: 152.0
If we subtract 182 from 233, we get 51.
Take the next digit (6) from the dividend and append it to 51, then repeat: 516 / 91

Let's proceed to step 6:
If we divide 516 by 91, we get 5 and a remainder of 61.
Put 5 as the next digit of the answer. 
Result so far: 1525.0
If we subtract 455 from 516, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 7:
91 goes into 610 6 times with a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 1525.6
The remainder is 64 after subtracting 546 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 8:
640 divided by 91 is 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 1525.67
If we take 637 away from 640, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 9:
30 divided by 91 is 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 1525.67
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
The number 91 fits into 300 3 times, leaving a remainder of 27.
The next digit of our result is 3. 
Result so far: 1525.6703
Subtracting 273 from 300 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 11:
If we divide 270 by 91, we get 2 and a remainder of 88.
Record the quotient 2 as the next digit in the result. 
Result so far: 1525.67032
If we subtract 182 from 270, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 12:
When dividing 880 by 91, we get 9 with a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 1525.670329
Subtract 819 from 880 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 13:
When dividing 610 by 91, we get 6 with a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 1525.6703296
Subtracting 546 from 610 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 14:
When dividing 640 by 91, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 1525.67032967
The remainder is 3 after subtracting 637 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 1525.67032967, with a leftover of 3e-09.