We look at the division of 51562921 by 959 
The aim is to understand the frequency of 959 in 51562921.

Step 1:
959 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 959

Going ahead to step 2:
The number 959 fits into 51 0 times, leaving a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Take the next digit (5) from the dividend and append it to 51, then repeat: 515 / 959

On to step 3:
When dividing 515 by 959, we get 0 with a remainder of 515.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 515 and we're left with 515.
Append the next digit (6) from the dividend to 515 and continue with: 5156 / 959

Let's proceed to step 4:
959 can be fit into 5156 5 times, resulting in a remainder of 361.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 4795 from 5156 leaves us with 361.
Take the next digit (2) from the dividend and append it to 361, then repeat: 3612 / 959

Advancing to step 5:
3612 divided by 959 is 3 with a remainder of 735.
The next digit of our result is 3. 
Result so far: 53.0
Subtracting 2877 from 3612 leaves us with 735.
Fetch the next digit (9) from the dividend, attach it to 735 and continue: 7359 / 959

Moving on to step 6:
The number 959 fits into 7359 7 times, leaving a remainder of 646.
Write down 7 as next digit of the result. 
Result so far: 537.0
Deduct 6713 from 7359 and we're left with 646.
Append the next digit (2) from the dividend to 646 and continue with: 6462 / 959

Let's proceed to step 7:
959 can be fit into 6462 6 times, resulting in a remainder of 708.
Write down 6 as next digit of the result. 
Result so far: 5376.0
Subtracting 5754 from 6462 leaves us with 708.
Append the next digit (1) from the dividend to 708 and continue with: 7081 / 959

Step 8:
7081 divided by 959 is 7 with a remainder of 368.
Record the quotient 7 as the next digit in the result. 
Result so far: 53767.0
If we take 6713 away from 7081, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Advancing to step 9:
The number 959 fits into 3680 3 times, leaving a remainder of 803.
Use 3 as the next digit of our solution. 
Result so far: 53767.3
If we take 2877 away from 3680, we end up with 803.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8030, and continue the process.

On to step 10:
When dividing 8030 by 959, we get 8 with a remainder of 358.
Record the quotient 8 as the next digit in the result. 
Result so far: 53767.38
If we take 7672 away from 8030, we end up with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Moving on to step 11:
When dividing 3580 by 959, we get 3 with a remainder of 703.
Write down 3 as next digit of the result. 
Result so far: 53767.383
If we take 2877 away from 3580, we end up with 703.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7030, and continue the process.

Moving on to step 12:
If we divide 7030 by 959, we get 7 and a remainder of 317.
Write down 7 as next digit of the result. 
Result so far: 53767.3837
If we take 6713 away from 7030, we end up with 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

Advancing to step 13:
959 goes into 3170 3 times with a remainder of 293.
Record the quotient 3 as the next digit in the result. 
Result so far: 53767.38373
The remainder is 293 after subtracting 2877 from 3170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

On to step 14:
If we divide 2930 by 959, we get 3 and a remainder of 53.
Record the quotient 3 as the next digit in the result. 
Result so far: 53767.383733
Subtracting 2877 from 2930 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Our division results in 53767.383733 with a remaining 5.3e-06.