We're dividing 78634758 by 51 
The aim is to understand the frequency of 51 in 78634758.

Going ahead to step 1:
51 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 51

On to step 2:
51 can be fit into 78 1 times, resulting in a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 51 away from 78, we end up with 27.
Include the next digit (6) from the dividend after 27, then repeat: 276 / 51

Moving on to step 3:
The number 51 fits into 276 5 times, leaving a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtracting 255 from 276 leaves us with 21.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 51

Going ahead to step 4:
If we divide 213 by 51, we get 4 and a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 154.0
Subtracting 204 from 213 leaves us with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 51

Step 5:
94 divided by 51 is 1 with a remainder of 43.
Write down 1 as next digit of the result. 
Result so far: 1541.0
Subtract 51 from 94 to get 43.
Grab the next digit (7) from the dividend, add it to 43, then carry on: 437 / 51

Let's proceed to step 6:
When dividing 437 by 51, we get 8 with a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 15418.0
Subtracting 408 from 437 leaves us with 29.
Grab the next digit (5) from the dividend, add it to 29, then carry on: 295 / 51

Moving on to step 7:
When dividing 295 by 51, we get 5 with a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 154185.0
The remainder is 40 after subtracting 255 from 295.
Grab the next digit (8) from the dividend, add it to 40, then carry on: 408 / 51

Moving on to step 8:
51 can be fit into 408 8 times, resulting in a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 1541858.0
If we subtract 408 from 408, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
If we divide 0 by 51, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1541858.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
If we divide 0 by 51, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1541858.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1541858.0, and the remainder is 0.0.