63505646 ÷ 53 
The aim is to understand the frequency of 53 in 63505646.

On to step 1:
If we divide 6 by 53, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 53

Advancing to step 2:
The number 53 fits into 63 1 times, leaving a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 53 away from 63, we end up with 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 53

Moving on to step 3:
When dividing 105 by 53, we get 1 with a remainder of 52.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 53 from 105 leaves us with 52.
Bring next digit (0) of the dividend behind the 52 and repeat the process: 520 / 53

Let's proceed to step 4:
520 divided by 53 is 9 with a remainder of 43.
The number 9 becomes the next digit in our result. 
Result so far: 119.0
If we subtract 477 from 520, we get 43.
Include the next digit (5) from the dividend after 43, then repeat: 435 / 53

Let's proceed to step 5:
When dividing 435 by 53, we get 8 with a remainder of 11.
The next digit of our result is 8. 
Result so far: 1198.0
If we take 424 away from 435, we end up with 11.
Bring next digit (6) of the dividend behind the 11 and repeat the process: 116 / 53

Going ahead to step 6:
53 can be fit into 116 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 11982.0
Subtract 106 from 116 to get 10.
Include the next digit (4) from the dividend after 10, then repeat: 104 / 53

Advancing to step 7:
The number 53 fits into 104 1 times, leaving a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 119821.0
Subtracting 53 from 104 leaves us with 51.
Grab the next digit (6) from the dividend, add it to 51, then carry on: 516 / 53

Step 8:
53 can be fit into 516 9 times, resulting in a remainder of 39.
The next digit of our result is 9. 
Result so far: 1198219.0
Subtracting 477 from 516 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 9:
The number 53 fits into 390 7 times, leaving a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 1198219.7
Deduct 371 from 390 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 10:
The number 53 fits into 190 3 times, leaving a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 1198219.73
If we take 159 away from 190, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 11:
The number 53 fits into 310 5 times, leaving a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 1198219.735
Subtract 265 from 310 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 12:
If we divide 450 by 53, we get 8 and a remainder of 26.
The next digit of our result is 8. 
Result so far: 1198219.7358
Subtract 424 from 450 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 13:
53 goes into 260 4 times with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 1198219.73584
The remainder is 48 after subtracting 212 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 14:
The number 53 fits into 480 9 times, leaving a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 1198219.735849
If we subtract 477 from 480, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 15:
53 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 1198219.735849
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 16:
53 can be fit into 300 5 times, resulting in a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 1198219.73584905
Subtract 265 from 300 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 1198219.73584905 and a remainder of 3.5e-08.