We divide 102119 by 90
The aim is to understand the frequency of 90 in 102119.

Going ahead to step 1:
1 divided by 90 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 90

Step 2:
The number 90 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 90

Let's proceed to step 3:
The number 90 fits into 102 1 times, leaving a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 90 from 102, we get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 90

Step 4:
When dividing 121 by 90, we get 1 with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 90 from 121 to get 31.
Fetch the next digit (1) from the dividend, attach it to 31 and continue: 311 / 90

Moving on to step 5:
If we divide 311 by 90, we get 3 and a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 113.0
If we subtract 270 from 311, we get 41.
Take the next digit (9) from the dividend and append it to 41, then repeat: 419 / 90

Step 6:
419 divided by 90 is 4 with a remainder of 59.
Write down 4 as next digit of the result. 
Result so far: 1134.0
Subtract 360 from 419 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 7:
If we divide 590 by 90, we get 6 and a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 1134.6
If we subtract 540 from 590, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
When dividing 500 by 90, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 1134.65
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
500 divided by 90 is 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 1134.655
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 1134.655 and a remainder of 0.005.