We look at the division of 747851 by 77 
Let's see how many times 77 fits into 747851.

On to step 1:
When dividing 7 by 77, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 77

On to step 2:
77 can be fit into 74 0 times, resulting in a remainder of 74.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 74, we get 74.
Append the next digit (7) from the dividend to 74 and continue with: 747 / 77

Moving on to step 3:
The number 77 fits into 747 9 times, leaving a remainder of 54.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 693 from 747 to get 54.
Fetch the next digit (8) from the dividend, attach it to 54 and continue: 548 / 77

Going ahead to step 4:
77 can be fit into 548 7 times, resulting in a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
If we subtract 539 from 548, we get 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 77

Moving on to step 5:
The number 77 fits into 95 1 times, leaving a remainder of 18.
The next digit of our result is 1. 
Result so far: 971.0
If we take 77 away from 95, we end up with 18.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 77

Going ahead to step 6:
77 can be fit into 181 2 times, resulting in a remainder of 27.
Put 2 as the next digit of the answer. 
Result so far: 9712.0
If we subtract 154 from 181, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 7:
When dividing 270 by 77, we get 3 with a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 9712.3
If we take 231 away from 270, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 8:
The number 77 fits into 390 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 9712.35
Subtract 385 from 390 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
When dividing 50 by 77, we get 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 9712.35
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 10:
When dividing 500 by 77, we get 6 with a remainder of 38.
Record the quotient 6 as the next digit in the result. 
Result so far: 9712.3506
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 11:
77 goes into 380 4 times with a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 9712.35064
Subtracting 308 from 380 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 12:
When dividing 720 by 77, we get 9 with a remainder of 27.
Write down 9 as next digit of the result. 
Result so far: 9712.350649
Subtract 693 from 720 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 13:
77 can be fit into 270 3 times, resulting in a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 9712.3506493
Deduct 231 from 270 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 14:
The number 77 fits into 390 5 times, leaving a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 9712.35064935
Subtracting 385 from 390 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 9712.35064935, with a leftover of 5e-09.