We're dividing 53809631 by 637 
The aim is to understand the frequency of 637 in 53809631.

Step 1:
The number 637 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 637

Advancing to step 2:
If we divide 53 by 637, we get 0 and a remainder of 53.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Append the next digit (8) from the dividend to 53 and continue with: 538 / 637

Step 3:
When dividing 538 by 637, we get 0 with a remainder of 538.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 538 leaves us with 538.
Take the next digit (0) from the dividend and append it to 538, then repeat: 5380 / 637

On to step 4:
When dividing 5380 by 637, we get 8 with a remainder of 284.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 284 after subtracting 5096 from 5380.
Include the next digit (9) from the dividend after 284, then repeat: 2849 / 637

Going ahead to step 5:
If we divide 2849 by 637, we get 4 and a remainder of 301.
Write down 4 as next digit of the result. 
Result so far: 84.0
If we subtract 2548 from 2849, we get 301.
Take the next digit (6) from the dividend and append it to 301, then repeat: 3016 / 637

Moving on to step 6:
637 can be fit into 3016 4 times, resulting in a remainder of 468.
The number 4 becomes the next digit in our result. 
Result so far: 844.0
If we take 2548 away from 3016, we end up with 468.
Take the next digit (3) from the dividend and append it to 468, then repeat: 4683 / 637

Let's proceed to step 7:
637 can be fit into 4683 7 times, resulting in a remainder of 224.
Put 7 as the next digit of the answer. 
Result so far: 8447.0
If we take 4459 away from 4683, we end up with 224.
Bring next digit (1) of the dividend behind the 224 and repeat the process: 2241 / 637

Advancing to step 8:
If we divide 2241 by 637, we get 3 and a remainder of 330.
Write down 3 as next digit of the result. 
Result so far: 84473.0
Subtracting 1911 from 2241 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 9:
637 can be fit into 3300 5 times, resulting in a remainder of 115.
Record the quotient 5 as the next digit in the result. 
Result so far: 84473.5
Subtracting 3185 from 3300 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Step 10:
The number 637 fits into 1150 1 times, leaving a remainder of 513.
Write down 1 as next digit of the result. 
Result so far: 84473.51
If we subtract 637 from 1150, we get 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

On to step 11:
637 can be fit into 5130 8 times, resulting in a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 84473.518
If we take 5096 away from 5130, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 12:
When dividing 340 by 637, we get 0 with a remainder of 340.
The next digit of our result is 0. 
Result so far: 84473.518
If we take 0 away from 340, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Let's proceed to step 13:
If we divide 3400 by 637, we get 5 and a remainder of 215.
Write down 5 as next digit of the result. 
Result so far: 84473.51805
If we subtract 3185 from 3400, we get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Going ahead to step 14:
The number 637 fits into 2150 3 times, leaving a remainder of 239.
Record the quotient 3 as the next digit in the result. 
Result so far: 84473.518053
Deduct 1911 from 2150 and we're left with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Let's proceed to step 15:
2390 divided by 637 is 3 with a remainder of 479.
Record the quotient 3 as the next digit in the result. 
Result so far: 84473.5180533
If we subtract 1911 from 2390, we get 479.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4790, and continue the process.

The final result is 84473.5180533 with a remainder of 4.79e-06.