Let's divide 988521 by 77
Our goal is to divide 988521 by 77.

Advancing to step 1:
77 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 77

Moving on to step 2:
98 divided by 77 is 1 with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 77 from 98 and we're left with 21.
Take the next digit (8) from the dividend and append it to 21, then repeat: 218 / 77

On to step 3:
When dividing 218 by 77, we get 2 with a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 154 from 218 to get 64.
Take the next digit (5) from the dividend and append it to 64, then repeat: 645 / 77

Let's proceed to step 4:
The number 77 fits into 645 8 times, leaving a remainder of 29.
Use 8 as the next digit of our solution. 
Result so far: 128.0
If we subtract 616 from 645, we get 29.
Append the next digit (2) from the dividend to 29 and continue with: 292 / 77

Moving on to step 5:
77 goes into 292 3 times with a remainder of 61.
Record the quotient 3 as the next digit in the result. 
Result so far: 1283.0
If we subtract 231 from 292, we get 61.
Fetch the next digit (1) from the dividend, attach it to 61 and continue: 611 / 77

On to step 6:
77 can be fit into 611 7 times, resulting in a remainder of 72.
The next digit of our result is 7. 
Result so far: 12837.0
The remainder is 72 after subtracting 539 from 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 7:
720 divided by 77 is 9 with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 12837.9
The remainder is 27 after subtracting 693 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 8:
If we divide 270 by 77, we get 3 and a remainder of 39.
Write down 3 as next digit of the result. 
Result so far: 12837.93
Subtract 231 from 270 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
77 goes into 390 5 times with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 12837.935
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.

Going ahead to step 10:
If we divide 50 by 77, we get 0 and a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 12837.935
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 11:
77 can be fit into 500 6 times, resulting in a remainder of 38.
The number 6 becomes the next digit in our result. 
Result so far: 12837.93506
If we take 462 away from 500, we end up 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.

On to step 12:
If we divide 380 by 77, we get 4 and a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 12837.935064
Deduct 308 from 380 and we're left 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 13:
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: 12837.9350649
If we subtract 693 from 720, 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.

On to step 14:
270 divided by 77 is 3 with a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 12837.93506493
If we subtract 231 from 270, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The quotient of the division is 12837.93506493, and the remainder is 3.9e-08.