We divide 155763 by 90
The aim is to understand the frequency of 90 in 155763.

Step 1:
The number 90 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 90

Moving on to step 2:
The number 90 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 90

Going ahead to step 3:
90 goes into 155 1 times with a remainder of 65.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 90 from 155 and we're left with 65.
Grab the next digit (7) from the dividend, add it to 65, then carry on: 657 / 90

On to step 4:
657 divided by 90 is 7 with a remainder of 27.
The next digit of our result is 7. 
Result so far: 17.0
Subtract 630 from 657 to get 27.
Append the next digit (6) from the dividend to 27 and continue with: 276 / 90

Going ahead to step 5:
The number 90 fits into 276 3 times, leaving a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 173.0
Deduct 270 from 276 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 90

Going ahead to step 6:
When dividing 63 by 90, we get 0 with a remainder of 63.
The next digit of our result is 0. 
Result so far: 1730.0
If we subtract 0 from 63, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 7:
If we divide 630 by 90, we get 7 and a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 1730.7
Deduct 630 from 630 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1730.7
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
90 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1730.7
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 1730.7, with a leftover of 0.0.