80870496 ÷ 63 
The aim is to understand the frequency of 63 in 80870496.

Let's proceed to step 1:
63 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 63

Advancing to step 2:
The number 63 fits into 80 1 times, leaving a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 63 from 80 and we're left with 17.
Include the next digit (8) from the dividend after 17, then repeat: 178 / 63

On to step 3:
The number 63 fits into 178 2 times, leaving a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 126 from 178 leaves us with 52.
Bring next digit (7) of the dividend behind the 52 and repeat the process: 527 / 63

Going ahead to step 4:
63 can be fit into 527 8 times, resulting in a remainder of 23.
Put 8 as the next digit of the answer. 
Result so far: 128.0
Subtracting 504 from 527 leaves us with 23.
Take the next digit (0) from the dividend and append it to 23, then repeat: 230 / 63

On to step 5:
When dividing 230 by 63, we get 3 with a remainder of 41.
Write down 3 as next digit of the result. 
Result so far: 1283.0
If we subtract 189 from 230, we get 41.
Bring next digit (4) of the dividend behind the 41 and repeat the process: 414 / 63

Going ahead to step 6:
63 can be fit into 414 6 times, resulting in a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 12836.0
Subtract 378 from 414 to get 36.
Grab the next digit (9) from the dividend, add it to 36, then carry on: 369 / 63

On to step 7:
63 goes into 369 5 times with a remainder of 54.
Use 5 as the next digit of our solution. 
Result so far: 128365.0
If we take 315 away from 369, we end up with 54.
Bring next digit (6) of the dividend behind the 54 and repeat the process: 546 / 63

Step 8:
The number 63 fits into 546 8 times, leaving a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 1283658.0
Deduct 504 from 546 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
The number 63 fits into 420 6 times, leaving a remainder of 42.
Write down 6 as next digit of the result. 
Result so far: 1283658.6
Subtracting 378 from 420 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 10:
When dividing 420 by 63, we get 6 with a remainder of 42.
Use 6 as the next digit of our solution. 
Result so far: 1283658.66
Deduct 378 from 420 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

After the division, we end up with 1283658.66 and a remainder of 0.042.