We look at the division of 18699306 by 486 
The aim is to understand the frequency of 486 in 18699306.

Going ahead to step 1:
486 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 486

On to step 2:
486 can be fit into 18 0 times, resulting in a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 486

On to step 3:
486 goes into 186 0 times with a remainder of 186.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 186, we get 186.
Fetch the next digit (9) from the dividend, attach it to 186 and continue: 1869 / 486

Step 4:
1869 divided by 486 is 3 with a remainder of 411.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 1458 away from 1869, we end up with 411.
Append the next digit (9) from the dividend to 411 and continue with: 4119 / 486

Step 5:
The number 486 fits into 4119 8 times, leaving a remainder of 231.
Write down 8 as next digit of the result. 
Result so far: 38.0
If we subtract 3888 from 4119, we get 231.
Append the next digit (3) from the dividend to 231 and continue with: 2313 / 486

Let's proceed to step 6:
If we divide 2313 by 486, we get 4 and a remainder of 369.
The number 4 becomes the next digit in our result. 
Result so far: 384.0
If we take 1944 away from 2313, we end up with 369.
Fetch the next digit (0) from the dividend, attach it to 369 and continue: 3690 / 486

On to step 7:
When dividing 3690 by 486, we get 7 with a remainder of 288.
The next digit of our result is 7. 
Result so far: 3847.0
Subtract 3402 from 3690 to get 288.
Fetch the next digit (6) from the dividend, attach it to 288 and continue: 2886 / 486

Let's proceed to step 8:
The number 486 fits into 2886 5 times, leaving a remainder of 456.
The next digit of our result is 5. 
Result so far: 38475.0
If we take 2430 away from 2886, we end up with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Step 9:
When dividing 4560 by 486, we get 9 with a remainder of 186.
Use 9 as the next digit of our solution. 
Result so far: 38475.9
If we take 4374 away from 4560, we end up with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

On to step 10:
486 goes into 1860 3 times with a remainder of 402.
Use 3 as the next digit of our solution. 
Result so far: 38475.93
Subtract 1458 from 1860 to get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Advancing to step 11:
When dividing 4020 by 486, we get 8 with a remainder of 132.
Record the quotient 8 as the next digit in the result. 
Result so far: 38475.938
Subtracting 3888 from 4020 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 12:
When dividing 1320 by 486, we get 2 with a remainder of 348.
Record the quotient 2 as the next digit in the result. 
Result so far: 38475.9382
Subtract 972 from 1320 to get 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Advancing to step 13:
When dividing 3480 by 486, we get 7 with a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 38475.93827
If we take 3402 away from 3480, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 14:
486 goes into 780 1 times with a remainder of 294.
The next digit of our result is 1. 
Result so far: 38475.938271
Subtracting 486 from 780 leaves us with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 15:
The number 486 fits into 2940 6 times, leaving a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 38475.9382716
Deduct 2916 from 2940 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 16:
240 divided by 486 is 0 with a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 38475.9382716
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

In conclusion, the division gives 38475.9382716 with a balance of 2.4e-07.