63138296 ÷ 810 
The aim is to understand the frequency of 810 in 63138296.

Moving on to step 1:
6 divided by 810 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 810

Step 2:
The number 810 fits into 63 0 times, leaving a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Bring next digit (1) of the dividend behind the 63 and repeat the process: 631 / 810

Going ahead to step 3:
The number 810 fits into 631 0 times, leaving a remainder of 631.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 631, we get 631.
Fetch the next digit (3) from the dividend, attach it to 631 and continue: 6313 / 810

Moving on to step 4:
When dividing 6313 by 810, we get 7 with a remainder of 643.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 5670 away from 6313, we end up with 643.
Include the next digit (8) from the dividend after 643, then repeat: 6438 / 810

Step 5:
810 can be fit into 6438 7 times, resulting in a remainder of 768.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
Deduct 5670 from 6438 and we're left with 768.
Append the next digit (2) from the dividend to 768 and continue with: 7682 / 810

Step 6:
810 can be fit into 7682 9 times, resulting in a remainder of 392.
The number 9 becomes the next digit in our result. 
Result so far: 779.0
Subtract 7290 from 7682 to get 392.
Bring next digit (9) of the dividend behind the 392 and repeat the process: 3929 / 810

Advancing to step 7:
The number 810 fits into 3929 4 times, leaving a remainder of 689.
Put 4 as the next digit of the answer. 
Result so far: 7794.0
Deduct 3240 from 3929 and we're left with 689.
Take the next digit (6) from the dividend and append it to 689, then repeat: 6896 / 810

Step 8:
810 can be fit into 6896 8 times, resulting in a remainder of 416.
Record the quotient 8 as the next digit in the result. 
Result so far: 77948.0
The remainder is 416 after subtracting 6480 from 6896.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Advancing to step 9:
The number 810 fits into 4160 5 times, leaving a remainder of 110.
Record the quotient 5 as the next digit in the result. 
Result so far: 77948.5
The remainder is 110 after subtracting 4050 from 4160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 10:
When dividing 1100 by 810, we get 1 with a remainder of 290.
Put 1 as the next digit of the answer. 
Result so far: 77948.51
If we take 810 away from 1100, we end up with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 11:
810 can be fit into 2900 3 times, resulting in a remainder of 470.
Put 3 as the next digit of the answer. 
Result so far: 77948.513
If we take 2430 away from 2900, we end up with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Let's proceed to step 12:
The number 810 fits into 4700 5 times, leaving a remainder of 650.
Write down 5 as next digit of the result. 
Result so far: 77948.5135
Subtracting 4050 from 4700 leaves us with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Let's proceed to step 13:
If we divide 6500 by 810, we get 8 and a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 77948.51358
If we take 6480 away from 6500, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 14:
200 divided by 810 is 0 with a remainder of 200.
The next digit of our result is 0. 
Result so far: 77948.51358
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 15:
810 can be fit into 2000 2 times, resulting in a remainder of 380.
Use 2 as the next digit of our solution. 
Result so far: 77948.5135802
Deduct 1620 from 2000 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 16:
When dividing 3800 by 810, we get 4 with a remainder of 560.
Put 4 as the next digit of the answer. 
Result so far: 77948.51358024
The remainder is 560 after subtracting 3240 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

The quotient of the division is 77948.51358024, and the remainder is 5.6e-07.