We look at the division of 74976825 by 643 
We're looking to find how many times 643 goes into 74976825.

On to step 1:
643 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 643

Advancing to step 2:
The number 643 fits into 74 0 times, leaving a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 74, we get 74.
Append the next digit (9) from the dividend to 74 and continue with: 749 / 643

On to step 3:
The number 643 fits into 749 1 times, leaving a remainder of 106.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 643 away from 749, we end up with 106.
Take the next digit (7) from the dividend and append it to 106, then repeat: 1067 / 643

Going ahead to step 4:
643 goes into 1067 1 times with a remainder of 424.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 643 from 1067 leaves us with 424.
Bring next digit (6) of the dividend behind the 424 and repeat the process: 4246 / 643

On to step 5:
If we divide 4246 by 643, we get 6 and a remainder of 388.
Record the quotient 6 as the next digit in the result. 
Result so far: 116.0
Subtract 3858 from 4246 to get 388.
Include the next digit (8) from the dividend after 388, then repeat: 3888 / 643

Step 6:
When dividing 3888 by 643, we get 6 with a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 1166.0
Subtracting 3858 from 3888 leaves us with 30.
Take the next digit (2) from the dividend and append it to 30, then repeat: 302 / 643

Let's proceed to step 7:
643 goes into 302 0 times with a remainder of 302.
Record the quotient 0 as the next digit in the result. 
Result so far: 11660.0
Subtracting 0 from 302 leaves us with 302.
Bring next digit (5) of the dividend behind the 302 and repeat the process: 3025 / 643

Going ahead to step 8:
When dividing 3025 by 643, we get 4 with a remainder of 453.
Write down 4 as next digit of the result. 
Result so far: 116604.0
The remainder is 453 after subtracting 2572 from 3025.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Step 9:
4530 divided by 643 is 7 with a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 116604.7
Subtract 4501 from 4530 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 10:
643 goes into 290 0 times with a remainder of 290.
Put 0 as the next digit of the answer. 
Result so far: 116604.7
If we subtract 0 from 290, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 11:
If we divide 2900 by 643, we get 4 and a remainder of 328.
Put 4 as the next digit of the answer. 
Result so far: 116604.704
Subtracting 2572 from 2900 leaves us with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

On to step 12:
The number 643 fits into 3280 5 times, leaving a remainder of 65.
The next digit of our result is 5. 
Result so far: 116604.7045
If we take 3215 away from 3280, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 13:
The number 643 fits into 650 1 times, leaving a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 116604.70451
Subtract 643 from 650 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 14:
If we divide 70 by 643, we get 0 and a remainder of 70.
The next digit of our result is 0. 
Result so far: 116604.70451
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 15:
643 goes into 700 1 times with a remainder of 57.
Record the quotient 1 as the next digit in the result. 
Result so far: 116604.7045101
Subtract 643 from 700 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 16:
643 can be fit into 570 0 times, resulting in a remainder of 570.
Use 0 as the next digit of our solution. 
Result so far: 116604.7045101
Subtracting 0 from 570 leaves us with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

After the division, we end up with 116604.7045101 and a remainder of 5.7e-07.