Let's divide 75285158 by 643
We want to divide 75285158 by 643.

Step 1:
If we divide 7 by 643, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 643

On to step 2:
If we divide 75 by 643, we get 0 and a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Append the next digit (2) from the dividend to 75 and continue with: 752 / 643

Let's proceed to step 3:
643 can be fit into 752 1 times, resulting in a remainder of 109.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 643 from 752, we get 109.
Fetch the next digit (8) from the dividend, attach it to 109 and continue: 1098 / 643

On to step 4:
The number 643 fits into 1098 1 times, leaving a remainder of 455.
The next digit of our result is 1. 
Result so far: 11.0
If we subtract 643 from 1098, we get 455.
Take the next digit (5) from the dividend and append it to 455, then repeat: 4555 / 643

Let's proceed to step 5:
The number 643 fits into 4555 7 times, leaving a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 117.0
If we take 4501 away from 4555, we end up with 54.
Include the next digit (1) from the dividend after 54, then repeat: 541 / 643

Advancing to step 6:
643 can be fit into 541 0 times, resulting in a remainder of 541.
The number 0 becomes the next digit in our result. 
Result so far: 1170.0
If we subtract 0 from 541, we get 541.
Include the next digit (5) from the dividend after 541, then repeat: 5415 / 643

Going ahead to step 7:
643 can be fit into 5415 8 times, resulting in a remainder of 271.
The next digit of our result is 8. 
Result so far: 11708.0
Subtract 5144 from 5415 to get 271.
Grab the next digit (8) from the dividend, add it to 271, then carry on: 2718 / 643

Let's proceed to step 8:
643 can be fit into 2718 4 times, resulting in a remainder of 146.
The number 4 becomes the next digit in our result. 
Result so far: 117084.0
If we take 2572 away from 2718, we end up with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Moving on to step 9:
If we divide 1460 by 643, we get 2 and a remainder of 174.
Record the quotient 2 as the next digit in the result. 
Result so far: 117084.2
The remainder is 174 after subtracting 1286 from 1460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Advancing to step 10:
1740 divided by 643 is 2 with a remainder of 454.
The next digit of our result is 2. 
Result so far: 117084.22
If we subtract 1286 from 1740, we get 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Our division results in 117084.22 with a remaining 0.454.