We divide 151987 by 90
Let's see how many times 90 fits into 151987.

Advancing to step 1:
1 divided by 90 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 90

Let's proceed to step 2:
When dividing 15 by 90, we get 0 with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 90

Advancing to step 3:
The number 90 fits into 151 1 times, leaving a remainder of 61.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 90 from 151 leaves us with 61.
Take the next digit (9) from the dividend and append it to 61, then repeat: 619 / 90

Step 4:
90 goes into 619 6 times with a remainder of 79.
The next digit of our result is 6. 
Result so far: 16.0
The remainder is 79 after subtracting 540 from 619.
Grab the next digit (8) from the dividend, add it to 79, then carry on: 798 / 90

Advancing to step 5:
When dividing 798 by 90, we get 8 with a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 168.0
Deduct 720 from 798 and we're left with 78.
Include the next digit (7) from the dividend after 78, then repeat: 787 / 90

Going ahead to step 6:
90 goes into 787 8 times with a remainder of 67.
Use 8 as the next digit of our solution. 
Result so far: 1688.0
Subtract 720 from 787 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Let's proceed to step 7:
The number 90 fits into 670 7 times, leaving a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 1688.7
Subtracting 630 from 670 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 1688.74
Subtracting 360 from 400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 1688.744
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 1688.744, with a leftover of 0.004.