Let's divide 746973 by 90
The aim is to understand the frequency of 90 in 746973.

Moving on to step 1:
90 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 90

Advancing to step 2:
When dividing 74 by 90, we get 0 with a remainder of 74.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 74 and we're left with 74.
Grab the next digit (6) from the dividend, add it to 74, then carry on: 746 / 90

Advancing to step 3:
90 goes into 746 8 times with a remainder of 26.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 720 from 746, we get 26.
Fetch the next digit (9) from the dividend, attach it to 26 and continue: 269 / 90

On to step 4:
90 goes into 269 2 times with a remainder of 89.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
Subtract 180 from 269 to get 89.
Include the next digit (7) from the dividend after 89, then repeat: 897 / 90

Advancing to step 5:
90 goes into 897 9 times with a remainder of 87.
Put 9 as the next digit of the answer. 
Result so far: 829.0
If we subtract 810 from 897, we get 87.
Bring next digit (3) of the dividend behind the 87 and repeat the process: 873 / 90

On to step 6:
If we divide 873 by 90, we get 9 and a remainder of 63.
Write down 9 as next digit of the result. 
Result so far: 8299.0
Deduct 810 from 873 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 7:
630 divided by 90 is 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 8299.7
If we take 630 away from 630, we end up 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.

Step 8:
90 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8299.7
Subtracting 0 from 0 leaves us 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 9:
When dividing 0 by 90, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 8299.7
Deduct 0 from 0 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.

After the division, we end up with 8299.7 and a remainder of 0.0.