We look at the division of 90556219 by 786 
The aim is to understand the frequency of 786 in 90556219.

Let's proceed to step 1:
When dividing 9 by 786, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 786

Going ahead to step 2:
The number 786 fits into 90 0 times, leaving a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Append the next digit (5) from the dividend to 90 and continue with: 905 / 786

On to step 3:
When dividing 905 by 786, we get 1 with a remainder of 119.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 786 from 905 and we're left with 119.
Grab the next digit (5) from the dividend, add it to 119, then carry on: 1195 / 786

Let's proceed to step 4:
The number 786 fits into 1195 1 times, leaving a remainder of 409.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we take 786 away from 1195, we end up with 409.
Take the next digit (6) from the dividend and append it to 409, then repeat: 4096 / 786

Going ahead to step 5:
786 goes into 4096 5 times with a remainder of 166.
The number 5 becomes the next digit in our result. 
Result so far: 115.0
The remainder is 166 after subtracting 3930 from 4096.
Append the next digit (2) from the dividend to 166 and continue with: 1662 / 786

Step 6:
1662 divided by 786 is 2 with a remainder of 90.
Write down 2 as next digit of the result. 
Result so far: 1152.0
Subtracting 1572 from 1662 leaves us with 90.
Take the next digit (1) from the dividend and append it to 90, then repeat: 901 / 786

Going ahead to step 7:
786 can be fit into 901 1 times, resulting in a remainder of 115.
The next digit of our result is 1. 
Result so far: 11521.0
Subtracting 786 from 901 leaves us with 115.
Bring next digit (9) of the dividend behind the 115 and repeat the process: 1159 / 786

On to step 8:
When dividing 1159 by 786, we get 1 with a remainder of 373.
The number 1 becomes the next digit in our result. 
Result so far: 115211.0
If we subtract 786 from 1159, we get 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Moving on to step 9:
The number 786 fits into 3730 4 times, leaving a remainder of 586.
Use 4 as the next digit of our solution. 
Result so far: 115211.4
If we subtract 3144 from 3730, we get 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Advancing to step 10:
If we divide 5860 by 786, we get 7 and a remainder of 358.
The number 7 becomes the next digit in our result. 
Result so far: 115211.47
Subtracting 5502 from 5860 leaves us with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Moving on to step 11:
786 goes into 3580 4 times with a remainder of 436.
The number 4 becomes the next digit in our result. 
Result so far: 115211.474
If we subtract 3144 from 3580, we get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Let's proceed to step 12:
When dividing 4360 by 786, we get 5 with a remainder of 430.
Use 5 as the next digit of our solution. 
Result so far: 115211.4745
Subtract 3930 from 4360 to get 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 13:
If we divide 4300 by 786, we get 5 and a remainder of 370.
The number 5 becomes the next digit in our result. 
Result so far: 115211.47455
If we subtract 3930 from 4300, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

The final result is 115211.47455 with a remainder of 0.00037.