We look at the division of 53159985 by 406 
The aim is to understand the frequency of 406 in 53159985.

Moving on to step 1:
5 divided by 406 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 406

Going ahead to step 2:
406 can be fit into 53 0 times, resulting in a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Fetch the next digit (1) from the dividend, attach it to 53 and continue: 531 / 406

Let's proceed to step 3:
The number 406 fits into 531 1 times, leaving a remainder of 125.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 406 from 531 leaves us with 125.
Fetch the next digit (5) from the dividend, attach it to 125 and continue: 1255 / 406

Let's proceed to step 4:
When dividing 1255 by 406, we get 3 with a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 1218 away from 1255, we end up with 37.
Take the next digit (9) from the dividend and append it to 37, then repeat: 379 / 406

Step 5:
406 can be fit into 379 0 times, resulting in a remainder of 379.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
Deduct 0 from 379 and we're left with 379.
Grab the next digit (9) from the dividend, add it to 379, then carry on: 3799 / 406

Advancing to step 6:
The number 406 fits into 3799 9 times, leaving a remainder of 145.
The number 9 becomes the next digit in our result. 
Result so far: 1309.0
If we subtract 3654 from 3799, we get 145.
Grab the next digit (8) from the dividend, add it to 145, then carry on: 1458 / 406

Let's proceed to step 7:
406 can be fit into 1458 3 times, resulting in a remainder of 240.
Use 3 as the next digit of our solution. 
Result so far: 13093.0
Deduct 1218 from 1458 and we're left with 240.
Append the next digit (5) from the dividend to 240 and continue with: 2405 / 406

Advancing to step 8:
The number 406 fits into 2405 5 times, leaving a remainder of 375.
Use 5 as the next digit of our solution. 
Result so far: 130935.0
Subtract 2030 from 2405 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Advancing to step 9:
When dividing 3750 by 406, we get 9 with a remainder of 96.
The number 9 becomes the next digit in our result. 
Result so far: 130935.9
The remainder is 96 after subtracting 3654 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 10:
If we divide 960 by 406, we get 2 and a remainder of 148.
The number 2 becomes the next digit in our result. 
Result so far: 130935.92
Subtracting 812 from 960 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 11:
If we divide 1480 by 406, we get 3 and a remainder of 262.
Put 3 as the next digit of the answer. 
Result so far: 130935.923
Subtract 1218 from 1480 to get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Let's proceed to step 12:
When dividing 2620 by 406, we get 6 with a remainder of 184.
Record the quotient 6 as the next digit in the result. 
Result so far: 130935.9236
If we subtract 2436 from 2620, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 13:
When dividing 1840 by 406, we get 4 with a remainder of 216.
Write down 4 as next digit of the result. 
Result so far: 130935.92364
Deduct 1624 from 1840 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 14:
If we divide 2160 by 406, we get 5 and a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 130935.923645
Subtract 2030 from 2160 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 15:
406 can be fit into 1300 3 times, resulting in a remainder of 82.
The number 3 becomes the next digit in our result. 
Result so far: 130935.9236453
The remainder is 82 after subtracting 1218 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 16:
406 goes into 820 2 times with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 130935.92364532
The remainder is 8 after subtracting 812 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 130935.92364532 with a remaining 8e-09.