We look at the division of 77143538 by 840 
Our goal is to divide 77143538 by 840.

Going ahead to step 1:
7 divided by 840 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 840

Step 2:
840 can be fit into 77 0 times, resulting in a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Take the next digit (1) from the dividend and append it to 77, then repeat: 771 / 840

Going ahead to step 3:
771 divided by 840 is 0 with a remainder of 771.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 771 leaves us with 771.
Bring next digit (4) of the dividend behind the 771 and repeat the process: 7714 / 840

On to step 4:
If we divide 7714 by 840, we get 9 and a remainder of 154.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 7560 from 7714 leaves us with 154.
Bring next digit (3) of the dividend behind the 154 and repeat the process: 1543 / 840

Let's proceed to step 5:
When dividing 1543 by 840, we get 1 with a remainder of 703.
Put 1 as the next digit of the answer. 
Result so far: 91.0
If we subtract 840 from 1543, we get 703.
Include the next digit (5) from the dividend after 703, then repeat: 7035 / 840

Step 6:
7035 divided by 840 is 8 with a remainder of 315.
The number 8 becomes the next digit in our result. 
Result so far: 918.0
Subtracting 6720 from 7035 leaves us with 315.
Append the next digit (3) from the dividend to 315 and continue with: 3153 / 840

Going ahead to step 7:
If we divide 3153 by 840, we get 3 and a remainder of 633.
The number 3 becomes the next digit in our result. 
Result so far: 9183.0
Deduct 2520 from 3153 and we're left with 633.
Grab the next digit (8) from the dividend, add it to 633, then carry on: 6338 / 840

Step 8:
840 goes into 6338 7 times with a remainder of 458.
Put 7 as the next digit of the answer. 
Result so far: 91837.0
If we take 5880 away from 6338, we end up with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Let's proceed to step 9:
The number 840 fits into 4580 5 times, leaving a remainder of 380.
Write down 5 as next digit of the result. 
Result so far: 91837.5
Deduct 4200 from 4580 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 10:
840 can be fit into 3800 4 times, resulting in a remainder of 440.
Put 4 as the next digit of the answer. 
Result so far: 91837.54
If we take 3360 away from 3800, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 11:
When dividing 4400 by 840, we get 5 with a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 91837.545
The remainder is 200 after subtracting 4200 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 12:
If we divide 2000 by 840, we get 2 and a remainder of 320.
Record the quotient 2 as the next digit in the result. 
Result so far: 91837.5452
Subtract 1680 from 2000 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 13:
3200 divided by 840 is 3 with a remainder of 680.
Use 3 as the next digit of our solution. 
Result so far: 91837.54523
The remainder is 680 after subtracting 2520 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Advancing to step 14:
840 goes into 6800 8 times with a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 91837.545238
If we subtract 6720 from 6800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 15:
800 divided by 840 is 0 with a remainder of 800.
Write down 0 as next digit of the result. 
Result so far: 91837.545238
Deduct 0 from 800 and we're left with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

On to step 16:
The number 840 fits into 8000 9 times, leaving a remainder of 440.
Write down 9 as next digit of the result. 
Result so far: 91837.54523809
Subtract 7560 from 8000 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

In conclusion, the division gives 91837.54523809 with a balance of 4.4e-07.