We're dividing 89008500 by 642 
We're looking to find how many times 642 goes into 89008500.

Going ahead to step 1:
If we divide 8 by 642, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 642

On to step 2:
642 goes into 89 0 times with a remainder of 89.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 89 and we're left with 89.
Bring next digit (0) of the dividend behind the 89 and repeat the process: 890 / 642

Step 3:
642 can be fit into 890 1 times, resulting in a remainder of 248.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 642 from 890, we get 248.
Grab the next digit (0) from the dividend, add it to 248, then carry on: 2480 / 642

Step 4:
If we divide 2480 by 642, we get 3 and a remainder of 554.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 1926 from 2480 and we're left with 554.
Grab the next digit (8) from the dividend, add it to 554, then carry on: 5548 / 642

Going ahead to step 5:
When dividing 5548 by 642, we get 8 with a remainder of 412.
Put 8 as the next digit of the answer. 
Result so far: 138.0
Deduct 5136 from 5548 and we're left with 412.
Include the next digit (5) from the dividend after 412, then repeat: 4125 / 642

On to step 6:
If we divide 4125 by 642, we get 6 and a remainder of 273.
The number 6 becomes the next digit in our result. 
Result so far: 1386.0
Subtracting 3852 from 4125 leaves us with 273.
Append the next digit (0) from the dividend to 273 and continue with: 2730 / 642

Going ahead to step 7:
642 goes into 2730 4 times with a remainder of 162.
The next digit of our result is 4. 
Result so far: 13864.0
The remainder is 162 after subtracting 2568 from 2730.
Fetch the next digit (0) from the dividend, attach it to 162 and continue: 1620 / 642

Moving on to step 8:
642 can be fit into 1620 2 times, resulting in a remainder of 336.
Record the quotient 2 as the next digit in the result. 
Result so far: 138642.0
Subtracting 1284 from 1620 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 9:
642 goes into 3360 5 times with a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 138642.5
Subtract 3210 from 3360 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 10:
If we divide 1500 by 642, we get 2 and a remainder of 216.
The number 2 becomes the next digit in our result. 
Result so far: 138642.52
Subtracting 1284 from 1500 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Advancing to step 11:
642 can be fit into 2160 3 times, resulting in a remainder of 234.
The number 3 becomes the next digit in our result. 
Result so far: 138642.523
If we subtract 1926 from 2160, we get 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Let's proceed to step 12:
642 can be fit into 2340 3 times, resulting in a remainder of 414.
The number 3 becomes the next digit in our result. 
Result so far: 138642.5233
If we take 1926 away from 2340, we end up with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

After the division, we end up with 138642.5233 and a remainder of 0.00414.