We divide 218469 by 51
The aim is to understand the frequency of 51 in 218469.

On to step 1:
The number 51 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 51

Moving on to step 2:
If we divide 21 by 51, we get 0 and a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 51

Moving on to step 3:
When dividing 218 by 51, we get 4 with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 204 from 218 and we're left with 14.
Include the next digit (4) from the dividend after 14, then repeat: 144 / 51

Advancing to step 4:
If we divide 144 by 51, we get 2 and a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
Deduct 102 from 144 and we're left with 42.
Grab the next digit (6) from the dividend, add it to 42, then carry on: 426 / 51

On to step 5:
When dividing 426 by 51, we get 8 with a remainder of 18.
The next digit of our result is 8. 
Result so far: 428.0
Subtracting 408 from 426 leaves us with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 51

Going ahead to step 6:
If we divide 189 by 51, we get 3 and a remainder of 36.
The number 3 becomes the next digit in our result. 
Result so far: 4283.0
Subtracting 153 from 189 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 7:
The number 51 fits into 360 7 times, leaving a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 4283.7
The remainder is 3 after subtracting 357 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 8:
If we divide 30 by 51, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 4283.7
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
51 can be fit into 300 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 4283.705
If we take 255 away from 300, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 10:
51 goes into 450 8 times with a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 4283.7058
Subtracting 408 from 450 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.

Advancing to step 11:
420 divided by 51 is 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 4283.70588
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 4283.70588, with a leftover of 1.2e-05.