We divide 79845121 by 427
The aim is to understand the frequency of 427 in 79845121.

On to step 1:
The number 427 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 427

Advancing to step 2:
427 can be fit into 79 0 times, resulting in a remainder of 79.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 79 and we're left with 79.
Include the next digit (8) from the dividend after 79, then repeat: 798 / 427

Let's proceed to step 3:
427 can be fit into 798 1 times, resulting in a remainder of 371.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 427 from 798, we get 371.
Grab the next digit (4) from the dividend, add it to 371, then carry on: 3714 / 427

Moving on to step 4:
If we divide 3714 by 427, we get 8 and a remainder of 298.
Write down 8 as next digit of the result. 
Result so far: 18.0
The remainder is 298 after subtracting 3416 from 3714.
Grab the next digit (5) from the dividend, add it to 298, then carry on: 2985 / 427

Going ahead to step 5:
If we divide 2985 by 427, we get 6 and a remainder of 423.
The next digit of our result is 6. 
Result so far: 186.0
Deduct 2562 from 2985 and we're left with 423.
Append the next digit (1) from the dividend to 423 and continue with: 4231 / 427

Going ahead to step 6:
When dividing 4231 by 427, we get 9 with a remainder of 388.
Write down 9 as next digit of the result. 
Result so far: 1869.0
Subtracting 3843 from 4231 leaves us with 388.
Grab the next digit (2) from the dividend, add it to 388, then carry on: 3882 / 427

Step 7:
427 goes into 3882 9 times with a remainder of 39.
Write down 9 as next digit of the result. 
Result so far: 18699.0
If we take 3843 away from 3882, we end up with 39.
Bring next digit (1) of the dividend behind the 39 and repeat the process: 391 / 427

Going ahead to step 8:
391 divided by 427 is 0 with a remainder of 391.
Record the quotient 0 as the next digit in the result. 
Result so far: 186990.0
If we take 0 away from 391, we end up with 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Moving on to step 9:
3910 divided by 427 is 9 with a remainder of 67.
Record the quotient 9 as the next digit in the result. 
Result so far: 186990.9
Subtract 3843 from 3910 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 10:
The number 427 fits into 670 1 times, leaving a remainder of 243.
The number 1 becomes the next digit in our result. 
Result so far: 186990.91
Subtracting 427 from 670 leaves us with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Moving on to step 11:
If we divide 2430 by 427, we get 5 and a remainder of 295.
Put 5 as the next digit of the answer. 
Result so far: 186990.915
Subtract 2135 from 2430 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Going ahead to step 12:
The number 427 fits into 2950 6 times, leaving a remainder of 388.
Record the quotient 6 as the next digit in the result. 
Result so far: 186990.9156
Subtracting 2562 from 2950 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 13:
427 can be fit into 3880 9 times, resulting in a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 186990.91569
If we subtract 3843 from 3880, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 14:
The number 427 fits into 370 0 times, leaving a remainder of 370.
The number 0 becomes the next digit in our result. 
Result so far: 186990.91569
If we subtract 0 from 370, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

On to step 15:
3700 divided by 427 is 8 with a remainder of 284.
Put 8 as the next digit of the answer. 
Result so far: 186990.9156908
Deduct 3416 from 3700 and we're left with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

On to step 16:
The number 427 fits into 2840 6 times, leaving a remainder of 278.
Use 6 as the next digit of our solution. 
Result so far: 186990.91569086
Deduct 2562 from 2840 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

The final outcome is 186990.91569086, with a leftover of 2.78e-07.