We look at the division of 53615899 by 984 
We want to divide 53615899 by 984.

Going ahead to step 1:
If we divide 5 by 984, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 984

On to step 2:
The number 984 fits into 53 0 times, leaving a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Bring next digit (6) of the dividend behind the 53 and repeat the process: 536 / 984

Let's proceed to step 3:
When dividing 536 by 984, we get 0 with a remainder of 536.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 536 and we're left with 536.
Bring next digit (1) of the dividend behind the 536 and repeat the process: 5361 / 984

Moving on to step 4:
When dividing 5361 by 984, we get 5 with a remainder of 441.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 441 after subtracting 4920 from 5361.
Append the next digit (5) from the dividend to 441 and continue with: 4415 / 984

Advancing to step 5:
984 can be fit into 4415 4 times, resulting in a remainder of 479.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we take 3936 away from 4415, we end up with 479.
Append the next digit (8) from the dividend to 479 and continue with: 4798 / 984

Going ahead to step 6:
984 goes into 4798 4 times with a remainder of 862.
Write down 4 as next digit of the result. 
Result so far: 544.0
Subtract 3936 from 4798 to get 862.
Include the next digit (9) from the dividend after 862, then repeat: 8629 / 984

Going ahead to step 7:
When dividing 8629 by 984, we get 8 with a remainder of 757.
Use 8 as the next digit of our solution. 
Result so far: 5448.0
If we take 7872 away from 8629, we end up with 757.
Fetch the next digit (9) from the dividend, attach it to 757 and continue: 7579 / 984

Moving on to step 8:
The number 984 fits into 7579 7 times, leaving a remainder of 691.
The number 7 becomes the next digit in our result. 
Result so far: 54487.0
Deduct 6888 from 7579 and we're left with 691.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6910, and continue the process.

On to step 9:
If we divide 6910 by 984, we get 7 and a remainder of 22.
Write down 7 as next digit of the result. 
Result so far: 54487.7
If we subtract 6888 from 6910, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 10:
The number 984 fits into 220 0 times, leaving a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 54487.7
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 11:
984 goes into 2200 2 times with a remainder of 232.
Use 2 as the next digit of our solution. 
Result so far: 54487.702
Subtract 1968 from 2200 to get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 12:
984 can be fit into 2320 2 times, resulting in a remainder of 352.
Use 2 as the next digit of our solution. 
Result so far: 54487.7022
Deduct 1968 from 2320 and we're left with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The final outcome is 54487.7022, with a leftover of 0.00352.