We're dividing 840137 by 5 
We're looking to find how many times 5 goes into 840137.

On to step 1:
When dividing 8 by 5, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 5 from 8, we get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 5

Step 2:
5 can be fit into 34 6 times, resulting in a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtract 30 from 34 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 5

Advancing to step 3:
When dividing 40 by 5, we get 8 with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 168.0
The remainder is 0 after subtracting 40 from 40.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 5

Going ahead to step 4:
5 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 1680.0
Subtract 0 from 1 to get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 5

Step 5:
5 can be fit into 13 2 times, resulting in a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 16802.0
If we subtract 10 from 13, we get 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 5

Step 6:
When dividing 37 by 5, we get 7 with a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 168027.0
If we take 35 away from 37, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
5 goes into 20 4 times with a remainder of 0.
The next digit of our result is 4. 
Result so far: 168027.4
Deduct 20 from 20 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
0 divided by 5 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 168027.4
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 5 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 168027.4
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 168027.4, with a leftover of 0.0.