We're dividing 51969952 by 526 
The aim is to understand the frequency of 526 in 51969952.

Going ahead to step 1:
5 divided by 526 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 526

Moving on to step 2:
51 divided by 526 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Take the next digit (9) from the dividend and append it to 51, then repeat: 519 / 526

Step 3:
If we divide 519 by 526, we get 0 and a remainder of 519.
Record the quotient 0 as the next digit in 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 / 526

Advancing to step 4:
The number 526 fits into 5196 9 times, leaving a remainder of 462.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 4734 from 5196, we get 462.
Grab the next digit (9) from the dividend, add it to 462, then carry on: 4629 / 526

Let's proceed to step 5:
When dividing 4629 by 526, we get 8 with a remainder of 421.
Use 8 as the next digit of our solution. 
Result so far: 98.0
The remainder is 421 after subtracting 4208 from 4629.
Bring next digit (9) of the dividend behind the 421 and repeat the process: 4219 / 526

Moving on to step 6:
The number 526 fits into 4219 8 times, leaving a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 988.0
If we take 4208 away from 4219, we end up with 11.
Grab the next digit (5) from the dividend, add it to 11, then carry on: 115 / 526

Let's proceed to step 7:
When dividing 115 by 526, we get 0 with a remainder of 115.
The next digit of our result is 0. 
Result so far: 9880.0
If we take 0 away from 115, we end up with 115.
Take the next digit (2) from the dividend and append it to 115, then repeat: 1152 / 526

Going ahead to step 8:
1152 divided by 526 is 2 with a remainder of 100.
Record the quotient 2 as the next digit in the result. 
Result so far: 98802.0
If we take 1052 away from 1152, we end up 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.

Advancing to step 9:
If we divide 1000 by 526, we get 1 and a remainder of 474.
Record the quotient 1 as the next digit in the result. 
Result so far: 98802.1
The remainder is 474 after subtracting 526 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

On to step 10:
526 can be fit into 4740 9 times, resulting in a remainder of 6.
The next digit of our result is 9. 
Result so far: 98802.19
If we subtract 4734 from 4740, we 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.

Going ahead to step 11:
If we divide 60 by 526, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 98802.19
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 12:
526 can be fit into 600 1 times, resulting in a remainder of 74.
The number 1 becomes the next digit in our result. 
Result so far: 98802.1901
The remainder is 74 after subtracting 526 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 13:
526 can be fit into 740 1 times, resulting in a remainder of 214.
Record the quotient 1 as the next digit in the result. 
Result so far: 98802.19011
Subtracting 526 from 740 leaves us with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

The final result is 98802.19011 with a remainder of 0.000214.