We're dividing 88739920 by 642 
We're looking to find how many times 642 goes into 88739920.

On to step 1:
642 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 642

Step 2:
The number 642 fits into 88 0 times, leaving a remainder of 88.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 88 leaves us with 88.
Fetch the next digit (7) from the dividend, attach it to 88 and continue: 887 / 642

Advancing to step 3:
642 goes into 887 1 times with a remainder of 245.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 642 from 887 and we're left with 245.
Take the next digit (3) from the dividend and append it to 245, then repeat: 2453 / 642

Advancing to step 4:
642 can be fit into 2453 3 times, resulting in a remainder of 527.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtracting 1926 from 2453 leaves us with 527.
Append the next digit (9) from the dividend to 527 and continue with: 5279 / 642

On to step 5:
If we divide 5279 by 642, we get 8 and a remainder of 143.
Put 8 as the next digit of the answer. 
Result so far: 138.0
If we take 5136 away from 5279, we end up with 143.
Fetch the next digit (9) from the dividend, attach it to 143 and continue: 1439 / 642

Let's proceed to step 6:
The number 642 fits into 1439 2 times, leaving a remainder of 155.
The next digit of our result is 2. 
Result so far: 1382.0
If we subtract 1284 from 1439, we get 155.
Append the next digit (2) from the dividend to 155 and continue with: 1552 / 642

On to step 7:
642 can be fit into 1552 2 times, resulting in a remainder of 268.
Write down 2 as next digit of the result. 
Result so far: 13822.0
If we take 1284 away from 1552, we end up with 268.
Bring next digit (0) of the dividend behind the 268 and repeat the process: 2680 / 642

Going ahead to step 8:
The number 642 fits into 2680 4 times, leaving a remainder of 112.
Put 4 as the next digit of the answer. 
Result so far: 138224.0
If we take 2568 away from 2680, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 9:
When dividing 1120 by 642, we get 1 with a remainder of 478.
The number 1 becomes the next digit in our result. 
Result so far: 138224.1
The remainder is 478 after subtracting 642 from 1120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Let's proceed to step 10:
642 can be fit into 4780 7 times, resulting in a remainder of 286.
Write down 7 as next digit of the result. 
Result so far: 138224.17
Deduct 4494 from 4780 and we're left with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Going ahead to step 11:
When dividing 2860 by 642, we get 4 with a remainder of 292.
Record the quotient 4 as the next digit in the result. 
Result so far: 138224.174
Subtracting 2568 from 2860 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Moving on to step 12:
642 goes into 2920 4 times with a remainder of 352.
Put 4 as the next digit of the answer. 
Result so far: 138224.1744
Deduct 2568 from 2920 and we're left with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Our division results in 138224.1744 with a remaining 0.00352.