52503128 divided by 406 
The aim is to understand the frequency of 406 in 52503128.

Let's proceed to step 1:
The number 406 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 406

Going ahead to step 2:
If we divide 52 by 406, we get 0 and a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 52 and we're left with 52.
Grab the next digit (5) from the dividend, add it to 52, then carry on: 525 / 406

Step 3:
The number 406 fits into 525 1 times, leaving a remainder of 119.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 406 from 525 and we're left with 119.
Grab the next digit (0) from the dividend, add it to 119, then carry on: 1190 / 406

Step 4:
If we divide 1190 by 406, we get 2 and a remainder of 378.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 812 from 1190 leaves us with 378.
Fetch the next digit (3) from the dividend, attach it to 378 and continue: 3783 / 406

Moving on to step 5:
3783 divided by 406 is 9 with a remainder of 129.
Write down 9 as next digit of the result. 
Result so far: 129.0
If we subtract 3654 from 3783, we get 129.
Fetch the next digit (1) from the dividend, attach it to 129 and continue: 1291 / 406

Let's proceed to step 6:
If we divide 1291 by 406, we get 3 and a remainder of 73.
The number 3 becomes the next digit in our result. 
Result so far: 1293.0
Subtracting 1218 from 1291 leaves us with 73.
Grab the next digit (2) from the dividend, add it to 73, then carry on: 732 / 406

On to step 7:
The number 406 fits into 732 1 times, leaving a remainder of 326.
Record the quotient 1 as the next digit in the result. 
Result so far: 12931.0
Deduct 406 from 732 and we're left with 326.
Include the next digit (8) from the dividend after 326, then repeat: 3268 / 406

Advancing to step 8:
When dividing 3268 by 406, we get 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 129318.0
Subtract 3248 from 3268 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
406 goes into 200 0 times with a remainder of 200.
The next digit of our result is 0. 
Result so far: 129318.0
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 10:
2000 divided by 406 is 4 with a remainder of 376.
The number 4 becomes the next digit in our result. 
Result so far: 129318.04
Deduct 1624 from 2000 and we're left with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

On to step 11:
When dividing 3760 by 406, we get 9 with a remainder of 106.
Record the quotient 9 as the next digit in the result. 
Result so far: 129318.049
The remainder is 106 after subtracting 3654 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Step 12:
The number 406 fits into 1060 2 times, leaving a remainder of 248.
Record the quotient 2 as the next digit in the result. 
Result so far: 129318.0492
Subtract 812 from 1060 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 13:
When dividing 2480 by 406, we get 6 with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 129318.04926
Subtract 2436 from 2480 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 14:
The number 406 fits into 440 1 times, leaving a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 129318.049261
Deduct 406 from 440 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 15:
406 goes into 340 0 times with a remainder of 340.
The next digit of our result is 0. 
Result so far: 129318.049261
Deduct 0 from 340 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 16:
3400 divided by 406 is 8 with a remainder of 152.
Write down 8 as next digit of the result. 
Result so far: 129318.04926108
If we take 3248 away from 3400, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

The quotient of the division is 129318.04926108, and the remainder is 1.52e-07.