344551 ÷ 51 
The aim is to understand the frequency of 51 in 344551.

Let's proceed to step 1:
When dividing 3 by 51, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 51

Going ahead to step 2:
The number 51 fits into 34 0 times, leaving a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 34 leaves us with 34.
Include the next digit (4) from the dividend after 34, then repeat: 344 / 51

On to step 3:
51 goes into 344 6 times with a remainder of 38.
The next digit of our result is 6. 
Result so far: 6.0
If we take 306 away from 344, we end up with 38.
Grab the next digit (5) from the dividend, add it to 38, then carry on: 385 / 51

Going ahead to step 4:
When dividing 385 by 51, we get 7 with a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 67.0
If we take 357 away from 385, we end up with 28.
Grab the next digit (5) from the dividend, add it to 28, then carry on: 285 / 51

Advancing to step 5:
If we divide 285 by 51, we get 5 and a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 675.0
Subtracting 255 from 285 leaves us with 30.
Append the next digit (1) from the dividend to 30 and continue with: 301 / 51

Let's proceed to step 6:
When dividing 301 by 51, we get 5 with a remainder of 46.
Put 5 as the next digit of the answer. 
Result so far: 6755.0
Deduct 255 from 301 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 7:
When dividing 460 by 51, we get 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 6755.9
Subtracting 459 from 460 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
10 divided by 51 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 6755.9
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
51 can be fit into 100 1 times, resulting in a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 6755.901
If we take 51 away from 100, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 10:
51 can be fit into 490 9 times, resulting in a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 6755.9019
If we take 459 away from 490, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 11:
51 goes into 310 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 6755.90196
Subtracting 306 from 310 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 12:
40 divided by 51 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 6755.90196
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 13:
51 goes into 400 7 times with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 6755.9019607
Subtracting 357 from 400 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 14:
51 goes into 430 8 times with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 6755.90196078
Subtracting 408 from 430 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final result is 6755.90196078 with a remainder of 2.2e-08.