Let's divide 53217465 by 990
The aim is to understand the frequency of 990 in 53217465.

Going ahead to step 1:
990 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 990

Let's proceed to step 2:
53 divided by 990 is 0 with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Take the next digit (2) from the dividend and append it to 53, then repeat: 532 / 990

Let's proceed to step 3:
990 can be fit into 532 0 times, resulting in a remainder of 532.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 532, we get 532.
Bring next digit (1) of the dividend behind the 532 and repeat the process: 5321 / 990

Advancing to step 4:
If we divide 5321 by 990, we get 5 and a remainder of 371.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 4950 away from 5321, we end up with 371.
Append the next digit (7) from the dividend to 371 and continue with: 3717 / 990

On to step 5:
The number 990 fits into 3717 3 times, leaving a remainder of 747.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtract 2970 from 3717 to get 747.
Take the next digit (4) from the dividend and append it to 747, then repeat: 7474 / 990

On to step 6:
If we divide 7474 by 990, we get 7 and a remainder of 544.
The next digit of our result is 7. 
Result so far: 537.0
If we take 6930 away from 7474, we end up with 544.
Include the next digit (6) from the dividend after 544, then repeat: 5446 / 990

On to step 7:
The number 990 fits into 5446 5 times, leaving a remainder of 496.
The next digit of our result is 5. 
Result so far: 5375.0
Deduct 4950 from 5446 and we're left with 496.
Bring next digit (5) of the dividend behind the 496 and repeat the process: 4965 / 990

Going ahead to step 8:
If we divide 4965 by 990, we get 5 and a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 53755.0
If we take 4950 away from 4965, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
990 goes into 150 0 times with a remainder of 150.
Write down 0 as next digit of the result. 
Result so far: 53755.0
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 10:
The number 990 fits into 1500 1 times, leaving a remainder of 510.
Put 1 as the next digit of the answer. 
Result so far: 53755.01
Subtracting 990 from 1500 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

On to step 11:
990 can be fit into 5100 5 times, resulting in a remainder of 150.
The next digit of our result is 5. 
Result so far: 53755.015
Subtract 4950 from 5100 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 12:
The number 990 fits into 1500 1 times, leaving a remainder of 510.
The number 1 becomes the next digit in our result. 
Result so far: 53755.0151
Deduct 990 from 1500 and we're left with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

On to step 13:
The number 990 fits into 5100 5 times, leaving a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 53755.01515
Subtracting 4950 from 5100 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 14:
If we divide 1500 by 990, we get 1 and a remainder of 510.
The next digit of our result is 1. 
Result so far: 53755.015151
If we take 990 away from 1500, we end up with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

On to step 15:
When dividing 5100 by 990, we get 5 with a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 53755.0151515
If we subtract 4950 from 5100, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 16:
990 can be fit into 1500 1 times, resulting in a remainder of 510.
Record the quotient 1 as the next digit in the result. 
Result so far: 53755.01515151
The remainder is 510 after subtracting 990 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

After the division, we end up with 53755.01515151 and a remainder of 5.1e-07.