Let's divide 781743 by 51
The aim is to understand the frequency of 51 in 781743.

Step 1:
The number 51 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 51

Going ahead to step 2:
51 goes into 78 1 times with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 51 from 78, we get 27.
Grab the next digit (1) from the dividend, add it to 27, then carry on: 271 / 51

Moving on to step 3:
The number 51 fits into 271 5 times, leaving a remainder of 16.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 255 from 271 and we're left with 16.
Bring next digit (7) of the dividend behind the 16 and repeat the process: 167 / 51

Moving on to step 4:
51 goes into 167 3 times with a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 153.0
If we take 153 away from 167, we end up with 14.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 51

Let's proceed to step 5:
When dividing 144 by 51, we get 2 with a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 1532.0
If we take 102 away from 144, we end up with 42.
Grab the next digit (3) from the dividend, add it to 42, then carry on: 423 / 51

Step 6:
51 can be fit into 423 8 times, resulting in a remainder of 15.
The next digit of our result is 8. 
Result so far: 15328.0
If we subtract 408 from 423, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
When dividing 150 by 51, we get 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 15328.2
Deduct 102 from 150 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 8:
480 divided by 51 is 9 with a remainder of 21.
The next digit of our result is 9. 
Result so far: 15328.29
Deduct 459 from 480 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 9:
51 goes into 210 4 times with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 15328.294
Subtract 204 from 210 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
The number 51 fits into 60 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 15328.2941
Subtract 51 from 60 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 11:
90 divided by 51 is 1 with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 15328.29411
The remainder is 39 after subtracting 51 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

After the division, we end up with 15328.29411 and a remainder of 3.9e-05.