90154772 ÷ 831 
The aim is to understand the frequency of 831 in 90154772.

Let's proceed to step 1:
9 divided by 831 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 831

Going ahead to step 2:
831 can be fit into 90 0 times, resulting in a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Fetch the next digit (1) from the dividend, attach it to 90 and continue: 901 / 831

On to step 3:
If we divide 901 by 831, we get 1 and a remainder of 70.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 831 from 901, we get 70.
Grab the next digit (5) from the dividend, add it to 70, then carry on: 705 / 831

Let's proceed to step 4:
705 divided by 831 is 0 with a remainder of 705.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 705 after subtracting 0 from 705.
Append the next digit (4) from the dividend to 705 and continue with: 7054 / 831

Going ahead to step 5:
7054 divided by 831 is 8 with a remainder of 406.
The next digit of our result is 8. 
Result so far: 108.0
The remainder is 406 after subtracting 6648 from 7054.
Take the next digit (7) from the dividend and append it to 406, then repeat: 4067 / 831

On to step 6:
When dividing 4067 by 831, we get 4 with a remainder of 743.
Write down 4 as next digit of the result. 
Result so far: 1084.0
The remainder is 743 after subtracting 3324 from 4067.
Take the next digit (7) from the dividend and append it to 743, then repeat: 7437 / 831

Going ahead to step 7:
831 can be fit into 7437 8 times, resulting in a remainder of 789.
Use 8 as the next digit of our solution. 
Result so far: 10848.0
Subtracting 6648 from 7437 leaves us with 789.
Append the next digit (2) from the dividend to 789 and continue with: 7892 / 831

Moving on to step 8:
If we divide 7892 by 831, we get 9 and a remainder of 413.
Use 9 as the next digit of our solution. 
Result so far: 108489.0
If we take 7479 away from 7892, we end up with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Moving on to step 9:
831 can be fit into 4130 4 times, resulting in a remainder of 806.
Use 4 as the next digit of our solution. 
Result so far: 108489.4
Subtract 3324 from 4130 to get 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

Let's proceed to step 10:
831 can be fit into 8060 9 times, resulting in a remainder of 581.
Use 9 as the next digit of our solution. 
Result so far: 108489.49
If we take 7479 away from 8060, we end up with 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

On to step 11:
The number 831 fits into 5810 6 times, leaving a remainder of 824.
Record the quotient 6 as the next digit in the result. 
Result so far: 108489.496
Subtract 4986 from 5810 to get 824.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8240, and continue the process.

Advancing to step 12:
The number 831 fits into 8240 9 times, leaving a remainder of 761.
Record the quotient 9 as the next digit in the result. 
Result so far: 108489.4969
The remainder is 761 after subtracting 7479 from 8240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7610, and continue the process.

Moving on to step 13:
831 can be fit into 7610 9 times, resulting in a remainder of 131.
Record the quotient 9 as the next digit in the result. 
Result so far: 108489.49699
Subtract 7479 from 7610 to get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

The quotient of the division is 108489.49699, and the remainder is 0.000131.