We're dividing 51988570 by 751 
The aim is to understand the frequency of 751 in 51988570.

Let's proceed to step 1:
751 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 751

Step 2:
The number 751 fits into 51 0 times, leaving a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Grab the next digit (9) from the dividend, add it to 51, then carry on: 519 / 751

Going ahead to step 3:
If we divide 519 by 751, we get 0 and a remainder of 519.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 519 leaves us with 519.
Append the next digit (8) from the dividend to 519 and continue with: 5198 / 751

Going ahead to step 4:
751 can be fit into 5198 6 times, resulting in a remainder of 692.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 4506 from 5198 and we're left with 692.
Include the next digit (8) from the dividend after 692, then repeat: 6928 / 751

On to step 5:
The number 751 fits into 6928 9 times, leaving a remainder of 169.
Put 9 as the next digit of the answer. 
Result so far: 69.0
Subtract 6759 from 6928 to get 169.
Fetch the next digit (5) from the dividend, attach it to 169 and continue: 1695 / 751

Going ahead to step 6:
751 can be fit into 1695 2 times, resulting in a remainder of 193.
The next digit of our result is 2. 
Result so far: 692.0
If we take 1502 away from 1695, we end up with 193.
Fetch the next digit (7) from the dividend, attach it to 193 and continue: 1937 / 751

Going ahead to step 7:
751 can be fit into 1937 2 times, resulting in a remainder of 435.
Put 2 as the next digit of the answer. 
Result so far: 6922.0
If we take 1502 away from 1937, we end up with 435.
Append the next digit (0) from the dividend to 435 and continue with: 4350 / 751

On to step 8:
When dividing 4350 by 751, we get 5 with a remainder of 595.
The number 5 becomes the next digit in our result. 
Result so far: 69225.0
Subtract 3755 from 4350 to get 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

On to step 9:
751 goes into 5950 7 times with a remainder of 693.
Put 7 as the next digit of the answer. 
Result so far: 69225.7
The remainder is 693 after subtracting 5257 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6930, and continue the process.

Let's proceed to step 10:
751 can be fit into 6930 9 times, resulting in a remainder of 171.
Record the quotient 9 as the next digit in the result. 
Result so far: 69225.79
If we subtract 6759 from 6930, we get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Moving on to step 11:
1710 divided by 751 is 2 with a remainder of 208.
Record the quotient 2 as the next digit in the result. 
Result so far: 69225.792
If we take 1502 away from 1710, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Going ahead to step 12:
751 goes into 2080 2 times with a remainder of 578.
The number 2 becomes the next digit in our result. 
Result so far: 69225.7922
If we take 1502 away from 2080, we end up with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Our division results in 69225.7922 with a remaining 0.00578.