Let's divide 71861426 by 506
The aim is to understand the frequency of 506 in 71861426.

Step 1:
506 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 506

Step 2:
The number 506 fits into 71 0 times, leaving a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Take the next digit (8) from the dividend and append it to 71, then repeat: 718 / 506

Let's proceed to step 3:
718 divided by 506 is 1 with a remainder of 212.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 506 away from 718, we end up with 212.
Include the next digit (6) from the dividend after 212, then repeat: 2126 / 506

Advancing to step 4:
The number 506 fits into 2126 4 times, leaving a remainder of 102.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtract 2024 from 2126 to get 102.
Fetch the next digit (1) from the dividend, attach it to 102 and continue: 1021 / 506

Moving on to step 5:
If we divide 1021 by 506, we get 2 and a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 142.0
Subtracting 1012 from 1021 leaves us with 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 506

On to step 6:
94 divided by 506 is 0 with a remainder of 94.
The number 0 becomes the next digit in our result. 
Result so far: 1420.0
If we subtract 0 from 94, we get 94.
Take the next digit (2) from the dividend and append it to 94, then repeat: 942 / 506

Moving on to step 7:
If we divide 942 by 506, we get 1 and a remainder of 436.
Put 1 as the next digit of the answer. 
Result so far: 14201.0
If we take 506 away from 942, we end up with 436.
Take the next digit (6) from the dividend and append it to 436, then repeat: 4366 / 506

On to step 8:
When dividing 4366 by 506, we get 8 with a remainder of 318.
The number 8 becomes the next digit in our result. 
Result so far: 142018.0
Deduct 4048 from 4366 and we're left with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Moving on to step 9:
When dividing 3180 by 506, we get 6 with a remainder of 144.
Use 6 as the next digit of our solution. 
Result so far: 142018.6
The remainder is 144 after subtracting 3036 from 3180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 10:
If we divide 1440 by 506, we get 2 and a remainder of 428.
Use 2 as the next digit of our solution. 
Result so far: 142018.62
The remainder is 428 after subtracting 1012 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

On to step 11:
The number 506 fits into 4280 8 times, leaving a remainder of 232.
Record the quotient 8 as the next digit in the result. 
Result so far: 142018.628
If we take 4048 away from 4280, we end up with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

On to step 12:
The number 506 fits into 2320 4 times, leaving a remainder of 296.
The number 4 becomes the next digit in our result. 
Result so far: 142018.6284
The remainder is 296 after subtracting 2024 from 2320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Let's proceed to step 13:
The number 506 fits into 2960 5 times, leaving a remainder of 430.
Use 5 as the next digit of our solution. 
Result so far: 142018.62845
If we take 2530 away from 2960, we end up with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 14:
If we divide 4300 by 506, we get 8 and a remainder of 252.
Put 8 as the next digit of the answer. 
Result so far: 142018.628458
The remainder is 252 after subtracting 4048 from 4300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Let's proceed to step 15:
506 can be fit into 2520 4 times, resulting in a remainder of 496.
Write down 4 as next digit of the result. 
Result so far: 142018.6284584
The remainder is 496 after subtracting 2024 from 2520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Step 16:
506 can be fit into 4960 9 times, resulting in a remainder of 406.
Record the quotient 9 as the next digit in the result. 
Result so far: 142018.62845849
If we take 4554 away from 4960, we end up with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

After the division, we end up with 142018.62845849 and a remainder of 4.06e-07.