We're dividing 91102142 by 388 
We want to figure out the number of times 91102142 can be divided by 388.

Moving on to step 1:
9 divided by 388 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 388

Moving on to step 2:
When dividing 91 by 388, we get 0 with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Include the next digit (1) from the dividend after 91, then repeat: 911 / 388

Moving on to step 3:
If we divide 911 by 388, we get 2 and a remainder of 135.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 776 from 911 leaves us with 135.
Append the next digit (0) from the dividend to 135 and continue with: 1350 / 388

On to step 4:
The number 388 fits into 1350 3 times, leaving a remainder of 186.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtract 1164 from 1350 to get 186.
Bring next digit (2) of the dividend behind the 186 and repeat the process: 1862 / 388

Advancing to step 5:
388 can be fit into 1862 4 times, resulting in a remainder of 310.
The number 4 becomes the next digit in our result. 
Result so far: 234.0
If we take 1552 away from 1862, we end up with 310.
Grab the next digit (1) from the dividend, add it to 310, then carry on: 3101 / 388

Advancing to step 6:
388 can be fit into 3101 7 times, resulting in a remainder of 385.
The next digit of our result is 7. 
Result so far: 2347.0
Deduct 2716 from 3101 and we're left with 385.
Grab the next digit (4) from the dividend, add it to 385, then carry on: 3854 / 388

Moving on to step 7:
388 goes into 3854 9 times with a remainder of 362.
The number 9 becomes the next digit in our result. 
Result so far: 23479.0
Deduct 3492 from 3854 and we're left with 362.
Append the next digit (2) from the dividend to 362 and continue with: 3622 / 388

Advancing to step 8:
388 goes into 3622 9 times with a remainder of 130.
Write down 9 as next digit of the result. 
Result so far: 234799.0
Subtract 3492 from 3622 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 9:
388 can be fit into 1300 3 times, resulting in a remainder of 136.
Record the quotient 3 as the next digit in the result. 
Result so far: 234799.3
Subtracting 1164 from 1300 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 10:
If we divide 1360 by 388, we get 3 and a remainder of 196.
Record the quotient 3 as the next digit in the result. 
Result so far: 234799.33
Deduct 1164 from 1360 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

The final result is 234799.33 with a remainder of 0.196.