Let's divide 54020702 by 312
Our goal is to divide 54020702 by 312.

Going ahead to step 1:
The number 312 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 312

Advancing to step 2:
When dividing 54 by 312, we get 0 with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Grab the next digit (0) from the dividend, add it to 54, then carry on: 540 / 312

Moving on to step 3:
312 can be fit into 540 1 times, resulting in a remainder of 228.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 228 after subtracting 312 from 540.
Take the next digit (2) from the dividend and append it to 228, then repeat: 2282 / 312

Let's proceed to step 4:
312 can be fit into 2282 7 times, resulting in a remainder of 98.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Subtract 2184 from 2282 to get 98.
Grab the next digit (0) from the dividend, add it to 98, then carry on: 980 / 312

Let's proceed to step 5:
The number 312 fits into 980 3 times, leaving a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 173.0
Subtracting 936 from 980 leaves us with 44.
Fetch the next digit (7) from the dividend, attach it to 44 and continue: 447 / 312

Moving on to step 6:
If we divide 447 by 312, we get 1 and a remainder of 135.
The number 1 becomes the next digit in our result. 
Result so far: 1731.0
Subtracting 312 from 447 leaves us with 135.
Fetch the next digit (0) from the dividend, attach it to 135 and continue: 1350 / 312

Let's proceed to step 7:
1350 divided by 312 is 4 with a remainder of 102.
Record the quotient 4 as the next digit in the result. 
Result so far: 17314.0
Subtracting 1248 from 1350 leaves us with 102.
Include the next digit (2) from the dividend after 102, then repeat: 1022 / 312

On to step 8:
1022 divided by 312 is 3 with a remainder of 86.
The number 3 becomes the next digit in our result. 
Result so far: 173143.0
Subtract 936 from 1022 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 9:
The number 312 fits into 860 2 times, leaving a remainder of 236.
Use 2 as the next digit of our solution. 
Result so far: 173143.2
Deduct 624 from 860 and we're left with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Step 10:
When dividing 2360 by 312, we get 7 with a remainder of 176.
Record the quotient 7 as the next digit in the result. 
Result so far: 173143.27
The remainder is 176 after subtracting 2184 from 2360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 11:
If we divide 1760 by 312, we get 5 and a remainder of 200.
The next digit of our result is 5. 
Result so far: 173143.275
Subtract 1560 from 1760 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 12:
If we divide 2000 by 312, we get 6 and a remainder of 128.
Use 6 as the next digit of our solution. 
Result so far: 173143.2756
The remainder is 128 after subtracting 1872 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Step 13:
The number 312 fits into 1280 4 times, leaving a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 173143.27564
Subtracting 1248 from 1280 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 14:
312 can be fit into 320 1 times, resulting in a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 173143.275641
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 15:
80 divided by 312 is 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 173143.275641
If we subtract 0 from 80, 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.

Let's proceed to step 16:
312 goes into 800 2 times with a remainder of 176.
Use 2 as the next digit of our solution. 
Result so far: 173143.27564102
Deduct 624 from 800 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

The final result is 173143.27564102 with a remainder of 1.76e-07.