694045 divided by 90 
The aim is to understand the frequency of 90 in 694045.

Step 1:
90 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 90

Going ahead to step 2:
90 goes into 69 0 times with a remainder of 69.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 69 leaves us with 69.
Append the next digit (4) from the dividend to 69 and continue with: 694 / 90

Let's proceed to step 3:
90 can be fit into 694 7 times, resulting in a remainder of 64.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 630 from 694 leaves us with 64.
Include the next digit (0) from the dividend after 64, then repeat: 640 / 90

On to step 4:
When dividing 640 by 90, we get 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 77.0
If we subtract 630 from 640, we get 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 90

Going ahead to step 5:
The number 90 fits into 104 1 times, leaving a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 771.0
The remainder is 14 after subtracting 90 from 104.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 90

Advancing to step 6:
90 goes into 145 1 times with a remainder of 55.
Use 1 as the next digit of our solution. 
Result so far: 7711.0
If we subtract 90 from 145, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 7:
550 divided by 90 is 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 7711.6
If we subtract 540 from 550, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
100 divided by 90 is 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 7711.61
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
When dividing 100 by 90, we get 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 7711.611
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 7711.611, and the remainder is 0.001.