51963381 ÷ 875 
The aim is to understand the frequency of 875 in 51963381.

Step 1:
875 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 875

Step 2:
The number 875 fits into 51 0 times, leaving a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Fetch the next digit (9) from the dividend, attach it to 51 and continue: 519 / 875

On to step 3:
When dividing 519 by 875, we get 0 with a remainder of 519.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 519 and we're left with 519.
Bring next digit (6) of the dividend behind the 519 and repeat the process: 5196 / 875

Let's proceed to step 4:
875 can be fit into 5196 5 times, resulting in a remainder of 821.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 4375 from 5196 leaves us with 821.
Bring next digit (3) of the dividend behind the 821 and repeat the process: 8213 / 875

On to step 5:
8213 divided by 875 is 9 with a remainder of 338.
Write down 9 as next digit of the result. 
Result so far: 59.0
The remainder is 338 after subtracting 7875 from 8213.
Include the next digit (3) from the dividend after 338, then repeat: 3383 / 875

Advancing to step 6:
If we divide 3383 by 875, we get 3 and a remainder of 758.
Put 3 as the next digit of the answer. 
Result so far: 593.0
Subtracting 2625 from 3383 leaves us with 758.
Include the next digit (8) from the dividend after 758, then repeat: 7588 / 875

Moving on to step 7:
875 can be fit into 7588 8 times, resulting in a remainder of 588.
The next digit of our result is 8. 
Result so far: 5938.0
Subtract 7000 from 7588 to get 588.
Fetch the next digit (1) from the dividend, attach it to 588 and continue: 5881 / 875

On to step 8:
The number 875 fits into 5881 6 times, leaving a remainder of 631.
Put 6 as the next digit of the answer. 
Result so far: 59386.0
If we take 5250 away from 5881, we end up with 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

On to step 9:
The number 875 fits into 6310 7 times, leaving a remainder of 185.
Write down 7 as next digit of the result. 
Result so far: 59386.7
If we subtract 6125 from 6310, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Step 10:
1850 divided by 875 is 2 with a remainder of 100.
The next digit of our result is 2. 
Result so far: 59386.72
Subtracting 1750 from 1850 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 11:
If we divide 1000 by 875, we get 1 and a remainder of 125.
The number 1 becomes the next digit in our result. 
Result so far: 59386.721
Subtracting 875 from 1000 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 12:
The number 875 fits into 1250 1 times, leaving a remainder of 375.
Put 1 as the next digit of the answer. 
Result so far: 59386.7211
The remainder is 375 after subtracting 875 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Our division results in 59386.7211 with a remaining 0.00375.