Let's divide 645387 by 88
We want to divide 645387 by 88.

On to step 1:
The number 88 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 88

On to step 2:
When dividing 64 by 88, we get 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Include the next digit (5) from the dividend after 64, then repeat: 645 / 88

Advancing to step 3:
If we divide 645 by 88, we get 7 and a remainder of 29.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 616 from 645 to get 29.
Fetch the next digit (3) from the dividend, attach it to 29 and continue: 293 / 88

Moving on to step 4:
88 can be fit into 293 3 times, resulting in a remainder of 29.
Use 3 as the next digit of our solution. 
Result so far: 73.0
The remainder is 29 after subtracting 264 from 293.
Append the next digit (8) from the dividend to 29 and continue with: 298 / 88

Step 5:
88 goes into 298 3 times with a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 733.0
Subtracting 264 from 298 leaves us with 34.
Bring next digit (7) of the dividend behind the 34 and repeat the process: 347 / 88

Moving on to step 6:
347 divided by 88 is 3 with a remainder of 83.
The number 3 becomes the next digit in our result. 
Result so far: 7333.0
Subtracting 264 from 347 leaves us with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 7:
When dividing 830 by 88, we get 9 with a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 7333.9
The remainder is 38 after subtracting 792 from 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 8:
88 goes into 380 4 times with a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 7333.94
Subtracting 352 from 380 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
If we divide 280 by 88, we get 3 and a remainder of 16.
The next digit of our result is 3. 
Result so far: 7333.943
If we take 264 away from 280, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
If we divide 160 by 88, we get 1 and a remainder of 72.
The next digit of our result is 1. 
Result so far: 7333.9431
If we take 88 away from 160, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 11:
720 divided by 88 is 8 with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 7333.94318
Subtract 704 from 720 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
If we divide 160 by 88, we get 1 and a remainder of 72.
Use 1 as the next digit of our solution. 
Result so far: 7333.943181
If we take 88 away from 160, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 13:
When dividing 720 by 88, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 7333.9431818
Subtracting 704 from 720 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 14:
160 divided by 88 is 1 with a remainder of 72.
Write down 1 as next digit of the result. 
Result so far: 7333.94318181
Subtracting 88 from 160 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 7333.94318181, with a leftover of 7.2e-08.