We look at the division of 57401350 by 643 
We want to divide 57401350 by 643.

On to step 1:
643 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 643

Going ahead to step 2:
57 divided by 643 is 0 with a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Grab the next digit (4) from the dividend, add it to 57, then carry on: 574 / 643

Moving on to step 3:
574 divided by 643 is 0 with a remainder of 574.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 574, we end up with 574.
Grab the next digit (0) from the dividend, add it to 574, then carry on: 5740 / 643

On to step 4:
If we divide 5740 by 643, we get 8 and a remainder of 596.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 5144 from 5740 and we're left with 596.
Bring next digit (1) of the dividend behind the 596 and repeat the process: 5961 / 643

Let's proceed to step 5:
If we divide 5961 by 643, we get 9 and a remainder of 174.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
The remainder is 174 after subtracting 5787 from 5961.
Fetch the next digit (3) from the dividend, attach it to 174 and continue: 1743 / 643

Let's proceed to step 6:
If we divide 1743 by 643, we get 2 and a remainder of 457.
Put 2 as the next digit of the answer. 
Result so far: 892.0
If we take 1286 away from 1743, we end up with 457.
Bring next digit (5) of the dividend behind the 457 and repeat the process: 4575 / 643

Going ahead to step 7:
If we divide 4575 by 643, we get 7 and a remainder of 74.
The next digit of our result is 7. 
Result so far: 8927.0
If we take 4501 away from 4575, we end up with 74.
Fetch the next digit (0) from the dividend, attach it to 74 and continue: 740 / 643

Let's proceed to step 8:
The number 643 fits into 740 1 times, leaving a remainder of 97.
The number 1 becomes the next digit in our result. 
Result so far: 89271.0
If we subtract 643 from 740, we get 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

On to step 9:
643 can be fit into 970 1 times, resulting in a remainder of 327.
The next digit of our result is 1. 
Result so far: 89271.1
Deduct 643 from 970 and we're left with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Let's proceed to step 10:
If we divide 3270 by 643, we get 5 and a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 89271.15
The remainder is 55 after subtracting 3215 from 3270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 11:
The number 643 fits into 550 0 times, leaving a remainder of 550.
Put 0 as the next digit of the answer. 
Result so far: 89271.15
If we take 0 away from 550, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 12:
5500 divided by 643 is 8 with a remainder of 356.
The next digit of our result is 8. 
Result so far: 89271.1508
If we take 5144 away from 5500, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Moving on to step 13:
If we divide 3560 by 643, we get 5 and a remainder of 345.
The next digit of our result is 5. 
Result so far: 89271.15085
Subtract 3215 from 3560 to get 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Step 14:
When dividing 3450 by 643, we get 5 with a remainder of 235.
Write down 5 as next digit of the result. 
Result so far: 89271.150855
Deduct 3215 from 3450 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

After the division, we end up with 89271.150855 and a remainder of 2.35e-05.