We're dividing 42151093 by 930 
We want to divide 42151093 by 930.

Step 1:
If we divide 4 by 930, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 930

Step 2:
930 goes into 42 0 times with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (1) of the dividend behind the 42 and repeat the process: 421 / 930

On to step 3:
930 can be fit into 421 0 times, resulting in a remainder of 421.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 421, we end up with 421.
Grab the next digit (5) from the dividend, add it to 421, then carry on: 4215 / 930

On to step 4:
930 goes into 4215 4 times with a remainder of 495.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 495 after subtracting 3720 from 4215.
Grab the next digit (1) from the dividend, add it to 495, then carry on: 4951 / 930

On to step 5:
The number 930 fits into 4951 5 times, leaving a remainder of 301.
Put 5 as the next digit of the answer. 
Result so far: 45.0
Deduct 4650 from 4951 and we're left with 301.
Fetch the next digit (0) from the dividend, attach it to 301 and continue: 3010 / 930

On to step 6:
The number 930 fits into 3010 3 times, leaving a remainder of 220.
Record the quotient 3 as the next digit in the result. 
Result so far: 453.0
Subtract 2790 from 3010 to get 220.
Grab the next digit (9) from the dividend, add it to 220, then carry on: 2209 / 930

Let's proceed to step 7:
The number 930 fits into 2209 2 times, leaving a remainder of 349.
Put 2 as the next digit of the answer. 
Result so far: 4532.0
If we subtract 1860 from 2209, we get 349.
Grab the next digit (3) from the dividend, add it to 349, then carry on: 3493 / 930

Going ahead to step 8:
930 can be fit into 3493 3 times, resulting in a remainder of 703.
The number 3 becomes the next digit in our result. 
Result so far: 45323.0
If we take 2790 away from 3493, we end up with 703.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7030, and continue the process.

Moving on to step 9:
If we divide 7030 by 930, we get 7 and a remainder of 520.
Put 7 as the next digit of the answer. 
Result so far: 45323.7
If we subtract 6510 from 7030, we get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 10:
The number 930 fits into 5200 5 times, leaving a remainder of 550.
The next digit of our result is 5. 
Result so far: 45323.75
If we take 4650 away from 5200, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Going ahead to step 11:
The number 930 fits into 5500 5 times, leaving a remainder of 850.
Put 5 as the next digit of the answer. 
Result so far: 45323.755
Subtracting 4650 from 5500 leaves us with 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

The final result is 45323.755 with a remainder of 0.085.