620987 divided by 19 
The aim is to understand the frequency of 19 in 620987.

Step 1:
The number 19 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 19

Advancing to step 2:
19 goes into 62 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 5 after subtracting 57 from 62.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 19

On to step 3:
The number 19 fits into 50 2 times, leaving a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
Subtract 38 from 50 to get 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 19

Going ahead to step 4:
129 divided by 19 is 6 with a remainder of 15.
Record the quotient 6 as the next digit in the result. 
Result so far: 326.0
If we take 114 away from 129, we end up with 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 19

Going ahead to step 5:
19 can be fit into 158 8 times, resulting in a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 3268.0
The remainder is 6 after subtracting 152 from 158.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 19

Advancing to step 6:
19 goes into 67 3 times with a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 32683.0
The remainder is 10 after subtracting 57 from 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
If we divide 100 by 19, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 32683.5
Subtract 95 from 100 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
The number 19 fits into 50 2 times, leaving a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 32683.52
If we subtract 38 from 50, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
When dividing 120 by 19, we get 6 with a remainder of 6.
The next digit of our result is 6. 
Result so far: 32683.526
The remainder is 6 after subtracting 114 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
If we divide 60 by 19, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 32683.5263
The remainder is 3 after subtracting 57 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 11:
19 can be fit into 30 1 times, resulting in a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 32683.52631
If we subtract 19 from 30, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 12:
When dividing 110 by 19, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 32683.526315
If we subtract 95 from 110, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 13:
If we divide 150 by 19, we get 7 and a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 32683.5263157
The remainder is 17 after subtracting 133 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 14:
When dividing 170 by 19, we get 8 with a remainder of 18.
The next digit of our result is 8. 
Result so far: 32683.52631578
Deduct 152 from 170 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 32683.52631578 and a remainder of 1.8e-08.