53706153 divided by 369 
The aim is to understand the frequency of 369 in 53706153.

On to step 1:
If we divide 5 by 369, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 369

On to step 2:
If we divide 53 by 369, we get 0 and a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Take the next digit (7) from the dividend and append it to 53, then repeat: 537 / 369

On to step 3:
If we divide 537 by 369, we get 1 and a remainder of 168.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 369 away from 537, we end up with 168.
Append the next digit (0) from the dividend to 168 and continue with: 1680 / 369

Moving on to step 4:
If we divide 1680 by 369, we get 4 and a remainder of 204.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we take 1476 away from 1680, we end up with 204.
Take the next digit (6) from the dividend and append it to 204, then repeat: 2046 / 369

Moving on to step 5:
369 goes into 2046 5 times with a remainder of 201.
Put 5 as the next digit of the answer. 
Result so far: 145.0
If we subtract 1845 from 2046, we get 201.
Bring next digit (1) of the dividend behind the 201 and repeat the process: 2011 / 369

Let's proceed to step 6:
If we divide 2011 by 369, we get 5 and a remainder of 166.
Put 5 as the next digit of the answer. 
Result so far: 1455.0
Subtracting 1845 from 2011 leaves us with 166.
Bring next digit (5) of the dividend behind the 166 and repeat the process: 1665 / 369

Let's proceed to step 7:
1665 divided by 369 is 4 with a remainder of 189.
Use 4 as the next digit of our solution. 
Result so far: 14554.0
Subtract 1476 from 1665 to get 189.
Append the next digit (3) from the dividend to 189 and continue with: 1893 / 369

Advancing to step 8:
369 goes into 1893 5 times with a remainder of 48.
The next digit of our result is 5. 
Result so far: 145545.0
If we take 1845 away from 1893, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 9:
The number 369 fits into 480 1 times, leaving a remainder of 111.
The next digit of our result is 1. 
Result so far: 145545.1
Subtracting 369 from 480 leaves us with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Going ahead to step 10:
When dividing 1110 by 369, we get 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 145545.13
Subtracting 1107 from 1110 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
When dividing 30 by 369, we get 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 145545.13
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 12:
369 can be fit into 300 0 times, resulting in a remainder of 300.
Put 0 as the next digit of the answer. 
Result so far: 145545.13
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final result is 145545.13 with a remainder of 0.003.