42639803 divided by 837 
We're looking to find how many times 837 goes into 42639803.

Going ahead to step 1:
4 divided by 837 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 837

Step 2:
837 can be fit into 42 0 times, resulting in a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Append the next digit (6) from the dividend to 42 and continue with: 426 / 837

On to step 3:
837 goes into 426 0 times with a remainder of 426.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 426 after subtracting 0 from 426.
Grab the next digit (3) from the dividend, add it to 426, then carry on: 4263 / 837

Step 4:
837 goes into 4263 5 times with a remainder of 78.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 78 after subtracting 4185 from 4263.
Grab the next digit (9) from the dividend, add it to 78, then carry on: 789 / 837

Step 5:
If we divide 789 by 837, we get 0 and a remainder of 789.
Write down 0 as next digit of the result. 
Result so far: 50.0
Subtracting 0 from 789 leaves us with 789.
Include the next digit (8) from the dividend after 789, then repeat: 7898 / 837

On to step 6:
When dividing 7898 by 837, we get 9 with a remainder of 365.
Put 9 as the next digit of the answer. 
Result so far: 509.0
If we subtract 7533 from 7898, we get 365.
Bring next digit (0) of the dividend behind the 365 and repeat the process: 3650 / 837

Advancing to step 7:
3650 divided by 837 is 4 with a remainder of 302.
The next digit of our result is 4. 
Result so far: 5094.0
Subtract 3348 from 3650 to get 302.
Take the next digit (3) from the dividend and append it to 302, then repeat: 3023 / 837

Step 8:
When dividing 3023 by 837, we get 3 with a remainder of 512.
Put 3 as the next digit of the answer. 
Result so far: 50943.0
If we take 2511 away from 3023, we end up with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Moving on to step 9:
If we divide 5120 by 837, we get 6 and a remainder of 98.
Record the quotient 6 as the next digit in the result. 
Result so far: 50943.6
If we subtract 5022 from 5120, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Going ahead to step 10:
When dividing 980 by 837, we get 1 with a remainder of 143.
Use 1 as the next digit of our solution. 
Result so far: 50943.61
Subtracting 837 from 980 leaves us with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Advancing to step 11:
If we divide 1430 by 837, we get 1 and a remainder of 593.
The number 1 becomes the next digit in our result. 
Result so far: 50943.611
Subtracting 837 from 1430 leaves us with 593.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

The final result is 50943.611 with a remainder of 0.0593.