We're dividing 83980402 by 53 
Our goal is to divide 83980402 by 53.

On to step 1:
If we divide 8 by 53, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 53

Step 2:
When dividing 83 by 53, we get 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 53 from 83 leaves us with 30.
Include the next digit (9) from the dividend after 30, then repeat: 309 / 53

Going ahead to step 3:
The number 53 fits into 309 5 times, leaving a remainder of 44.
Put 5 as the next digit of the answer. 
Result so far: 15.0
The remainder is 44 after subtracting 265 from 309.
Append the next digit (8) from the dividend to 44 and continue with: 448 / 53

Going ahead to step 4:
53 goes into 448 8 times with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 158.0
Subtracting 424 from 448 leaves us with 24.
Include the next digit (0) from the dividend after 24, then repeat: 240 / 53

Let's proceed to step 5:
53 can be fit into 240 4 times, resulting in a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 1584.0
Subtract 212 from 240 to get 28.
Grab the next digit (4) from the dividend, add it to 28, then carry on: 284 / 53

Step 6:
If we divide 284 by 53, we get 5 and a remainder of 19.
The next digit of our result is 5. 
Result so far: 15845.0
Subtract 265 from 284 to get 19.
Take the next digit (0) from the dividend and append it to 19, then repeat: 190 / 53

Let's proceed to step 7:
53 goes into 190 3 times with a remainder of 31.
Write down 3 as next digit of the result. 
Result so far: 158453.0
Deduct 159 from 190 and we're left with 31.
Append the next digit (2) from the dividend to 31 and continue with: 312 / 53

Step 8:
312 divided by 53 is 5 with a remainder of 47.
Put 5 as the next digit of the answer. 
Result so far: 1584535.0
Subtract 265 from 312 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 9:
470 divided by 53 is 8 with a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 1584535.8
If we take 424 away from 470, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 10:
460 divided by 53 is 8 with a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 1584535.88
Deduct 424 from 460 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final outcome is 1584535.88, with a leftover of 0.036.