We look at the division of 63557341 by 551 
The aim is to understand the frequency of 551 in 63557341.

On to step 1:
551 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 551

On to step 2:
551 can be fit into 63 0 times, resulting in a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Append the next digit (5) from the dividend to 63 and continue with: 635 / 551

Advancing to step 3:
If we divide 635 by 551, we get 1 and a remainder of 84.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 551 from 635 to get 84.
Include the next digit (5) from the dividend after 84, then repeat: 845 / 551

Advancing to step 4:
When dividing 845 by 551, we get 1 with a remainder of 294.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 551 from 845 to get 294.
Fetch the next digit (7) from the dividend, attach it to 294 and continue: 2947 / 551

Going ahead to step 5:
If we divide 2947 by 551, we get 5 and a remainder of 192.
Write down 5 as next digit of the result. 
Result so far: 115.0
Subtract 2755 from 2947 to get 192.
Bring next digit (3) of the dividend behind the 192 and repeat the process: 1923 / 551

Let's proceed to step 6:
If we divide 1923 by 551, we get 3 and a remainder of 270.
Record the quotient 3 as the next digit in the result. 
Result so far: 1153.0
If we take 1653 away from 1923, we end up with 270.
Grab the next digit (4) from the dividend, add it to 270, then carry on: 2704 / 551

Moving on to step 7:
551 can be fit into 2704 4 times, resulting in a remainder of 500.
Write down 4 as next digit of the result. 
Result so far: 11534.0
If we subtract 2204 from 2704, we get 500.
Take the next digit (1) from the dividend and append it to 500, then repeat: 5001 / 551

Advancing to step 8:
551 can be fit into 5001 9 times, resulting in a remainder of 42.
The number 9 becomes the next digit in our result. 
Result so far: 115349.0
Subtracting 4959 from 5001 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
420 divided by 551 is 0 with a remainder of 420.
The next digit of our result is 0. 
Result so far: 115349.0
Subtract 0 from 420 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 10:
If we divide 4200 by 551, we get 7 and a remainder of 343.
Use 7 as the next digit of our solution. 
Result so far: 115349.07
Deduct 3857 from 4200 and we're left with 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Going ahead to step 11:
3430 divided by 551 is 6 with a remainder of 124.
The next digit of our result is 6. 
Result so far: 115349.076
If we take 3306 away from 3430, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 12:
551 goes into 1240 2 times with a remainder of 138.
Record the quotient 2 as the next digit in the result. 
Result so far: 115349.0762
Subtract 1102 from 1240 to get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Going ahead to step 13:
1380 divided by 551 is 2 with a remainder of 278.
Use 2 as the next digit of our solution. 
Result so far: 115349.07622
Deduct 1102 from 1380 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

The quotient of the division is 115349.07622, and the remainder is 0.000278.