We divide 42438918 by 840
We're looking to find how many times 840 goes into 42438918.

Going ahead to step 1:
When dividing 4 by 840, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 840

Advancing to step 2:
840 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
Subtracting 0 from 42 leaves us with 42.
Grab the next digit (4) from the dividend, add it to 42, then carry on: 424 / 840

Advancing to step 3:
If we divide 424 by 840, we get 0 and a remainder of 424.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 424 to get 424.
Grab the next digit (3) from the dividend, add it to 424, then carry on: 4243 / 840

Going ahead to step 4:
When dividing 4243 by 840, we get 5 with a remainder of 43.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 4200 from 4243, we get 43.
Include the next digit (8) from the dividend after 43, then repeat: 438 / 840

Let's proceed to step 5:
When dividing 438 by 840, we get 0 with a remainder of 438.
The next digit of our result is 0. 
Result so far: 50.0
The remainder is 438 after subtracting 0 from 438.
Bring next digit (9) of the dividend behind the 438 and repeat the process: 4389 / 840

Moving on to step 6:
840 goes into 4389 5 times with a remainder of 189.
The next digit of our result is 5. 
Result so far: 505.0
The remainder is 189 after subtracting 4200 from 4389.
Bring next digit (1) of the dividend behind the 189 and repeat the process: 1891 / 840

Moving on to step 7:
840 goes into 1891 2 times with a remainder of 211.
The number 2 becomes the next digit in our result. 
Result so far: 5052.0
If we take 1680 away from 1891, we end up with 211.
Include the next digit (8) from the dividend after 211, then repeat: 2118 / 840

Going ahead to step 8:
The number 840 fits into 2118 2 times, leaving a remainder of 438.
Write down 2 as next digit of the result. 
Result so far: 50522.0
Subtract 1680 from 2118 to get 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Going ahead to step 9:
4380 divided by 840 is 5 with a remainder of 180.
Put 5 as the next digit of the answer. 
Result so far: 50522.5
The remainder is 180 after subtracting 4200 from 4380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 10:
840 can be fit into 1800 2 times, resulting in a remainder of 120.
Write down 2 as next digit of the result. 
Result so far: 50522.52
The remainder is 120 after subtracting 1680 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 11:
The number 840 fits into 1200 1 times, leaving a remainder of 360.
The number 1 becomes the next digit in our result. 
Result so far: 50522.521
Deduct 840 from 1200 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Going ahead to step 12:
If we divide 3600 by 840, we get 4 and a remainder of 240.
The number 4 becomes the next digit in our result. 
Result so far: 50522.5214
Subtracting 3360 from 3600 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 13:
The number 840 fits into 2400 2 times, leaving a remainder of 720.
The next digit of our result is 2. 
Result so far: 50522.52142
The remainder is 720 after subtracting 1680 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 14:
7200 divided by 840 is 8 with a remainder of 480.
The next digit of our result is 8. 
Result so far: 50522.521428
If we take 6720 away from 7200, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 15:
4800 divided by 840 is 5 with a remainder of 600.
Record the quotient 5 as the next digit in the result. 
Result so far: 50522.5214285
Subtract 4200 from 4800 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 16:
840 can be fit into 6000 7 times, resulting in a remainder of 120.
The number 7 becomes the next digit in our result. 
Result so far: 50522.52142857
If we subtract 5880 from 6000, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The final outcome is 50522.52142857, with a leftover of 1.2e-07.