Let's divide 77811863 by 81
The aim is to understand the frequency of 81 in 77811863.

Advancing to step 1:
81 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 81

Moving on to step 2:
77 divided by 81 is 0 with a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Include the next digit (8) from the dividend after 77, then repeat: 778 / 81

Going ahead to step 3:
81 goes into 778 9 times with a remainder of 49.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 729 from 778, we get 49.
Grab the next digit (1) from the dividend, add it to 49, then carry on: 491 / 81

On to step 4:
When dividing 491 by 81, we get 6 with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
If we take 486 away from 491, we end up with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 81

Going ahead to step 5:
81 can be fit into 51 0 times, resulting in a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 960.0
Deduct 0 from 51 and we're left with 51.
Include the next digit (8) from the dividend after 51, then repeat: 518 / 81

Advancing to step 6:
518 divided by 81 is 6 with a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 9606.0
Subtract 486 from 518 to get 32.
Bring next digit (6) of the dividend behind the 32 and repeat the process: 326 / 81

Going ahead to step 7:
81 goes into 326 4 times with a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 96064.0
The remainder is 2 after subtracting 324 from 326.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 81

Step 8:
If we divide 23 by 81, we get 0 and a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 960640.0
Deduct 0 from 23 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 9:
230 divided by 81 is 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 960640.2
If we take 162 away from 230, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 10:
The number 81 fits into 680 8 times, leaving a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 960640.28
If we take 648 away from 680, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 11:
81 can be fit into 320 3 times, resulting in a remainder of 77.
Write down 3 as next digit of the result. 
Result so far: 960640.283
If we take 243 away from 320, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 12:
770 divided by 81 is 9 with a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 960640.2839
If we take 729 away from 770, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 13:
The number 81 fits into 410 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 960640.28395
If we subtract 405 from 410, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 14:
81 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 960640.28395
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 15:
500 divided by 81 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 960640.2839506
If we take 486 away from 500, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 16:
81 can be fit into 140 1 times, resulting in a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 960640.28395061
Deduct 81 from 140 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

The quotient of the division is 960640.28395061, and the remainder is 5.9e-08.