We look at the division of 158749 by 89 
We want to figure out the number of times 158749 can be divided by 89.

On to step 1:
The number 89 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 89

Going ahead to step 2:
89 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 89

Going ahead to step 3:
89 goes into 158 1 times with a remainder of 69.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 69 after subtracting 89 from 158.
Fetch the next digit (7) from the dividend, attach it to 69 and continue: 697 / 89

On to step 4:
89 can be fit into 697 7 times, resulting in a remainder of 74.
The next digit of our result is 7. 
Result so far: 17.0
The remainder is 74 after subtracting 623 from 697.
Append the next digit (4) from the dividend to 74 and continue with: 744 / 89

Step 5:
When dividing 744 by 89, we get 8 with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 178.0
Subtract 712 from 744 to get 32.
Fetch the next digit (9) from the dividend, attach it to 32 and continue: 329 / 89

Step 6:
When dividing 329 by 89, we get 3 with a remainder of 62.
The next digit of our result is 3. 
Result so far: 1783.0
If we subtract 267 from 329, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 7:
The number 89 fits into 620 6 times, leaving a remainder of 86.
The next digit of our result is 6. 
Result so far: 1783.6
The remainder is 86 after subtracting 534 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 8:
The number 89 fits into 860 9 times, leaving a remainder of 59.
Record the quotient 9 as the next digit in the result. 
Result so far: 1783.69
The remainder is 59 after subtracting 801 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 9:
If we divide 590 by 89, we get 6 and a remainder of 56.
Put 6 as the next digit of the answer. 
Result so far: 1783.696
Deduct 534 from 590 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 10:
When dividing 560 by 89, we get 6 with a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 1783.6966
Subtract 534 from 560 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final outcome is 1783.6966, with a leftover of 0.00026.