358124 divided by 90 
The aim is to understand the frequency of 90 in 358124.

Advancing to step 1:
90 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 90

Step 2:
90 goes into 35 0 times with a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Fetch the next digit (8) from the dividend, attach it to 35 and continue: 358 / 90

Let's proceed to step 3:
If we divide 358 by 90, we get 3 and a remainder of 88.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 270 from 358 to get 88.
Fetch the next digit (1) from the dividend, attach it to 88 and continue: 881 / 90

Advancing to step 4:
When dividing 881 by 90, we get 9 with a remainder of 71.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtract 810 from 881 to get 71.
Grab the next digit (2) from the dividend, add it to 71, then carry on: 712 / 90

Advancing to step 5:
90 can be fit into 712 7 times, resulting in a remainder of 82.
Record the quotient 7 as the next digit in the result. 
Result so far: 397.0
Subtract 630 from 712 to get 82.
Include the next digit (4) from the dividend after 82, then repeat: 824 / 90

Going ahead to step 6:
If we divide 824 by 90, we get 9 and a remainder of 14.
The number 9 becomes the next digit in our result. 
Result so far: 3979.0
If we take 810 away from 824, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
90 can be fit into 140 1 times, resulting in a remainder of 50.
Record the quotient 1 as the next digit in the result. 
Result so far: 3979.1
The remainder is 50 after subtracting 90 from 140.
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 8:
The number 90 fits into 500 5 times, leaving a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 3979.15
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.

Let's proceed to step 9:
90 can be fit into 500 5 times, resulting in a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 3979.155
Subtracting 450 from 500 leaves us 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.

The quotient of the division is 3979.155, and the remainder is 0.005.