Let's divide 19789545 by 679
The aim is to understand the frequency of 679 in 19789545.

Step 1:
If we divide 1 by 679, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 679

Going ahead to step 2:
The number 679 fits into 19 0 times, leaving a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Take the next digit (7) from the dividend and append it to 19, then repeat: 197 / 679

Advancing to step 3:
197 divided by 679 is 0 with a remainder of 197.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 197 after subtracting 0 from 197.
Append the next digit (8) from the dividend to 197 and continue with: 1978 / 679

On to step 4:
679 goes into 1978 2 times with a remainder of 620.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 620 after subtracting 1358 from 1978.
Include the next digit (9) from the dividend after 620, then repeat: 6209 / 679

Step 5:
679 can be fit into 6209 9 times, resulting in a remainder of 98.
Put 9 as the next digit of the answer. 
Result so far: 29.0
If we subtract 6111 from 6209, we get 98.
Bring next digit (5) of the dividend behind the 98 and repeat the process: 985 / 679

Going ahead to step 6:
The number 679 fits into 985 1 times, leaving a remainder of 306.
The next digit of our result is 1. 
Result so far: 291.0
Subtracting 679 from 985 leaves us with 306.
Bring next digit (4) of the dividend behind the 306 and repeat the process: 3064 / 679

Going ahead to step 7:
679 goes into 3064 4 times with a remainder of 348.
Put 4 as the next digit of the answer. 
Result so far: 2914.0
If we subtract 2716 from 3064, we get 348.
Grab the next digit (5) from the dividend, add it to 348, then carry on: 3485 / 679

Going ahead to step 8:
3485 divided by 679 is 5 with a remainder of 90.
Record the quotient 5 as the next digit in the result. 
Result so far: 29145.0
Deduct 3395 from 3485 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 9:
If we divide 900 by 679, we get 1 and a remainder of 221.
The next digit of our result is 1. 
Result so far: 29145.1
Subtract 679 from 900 to get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

On to step 10:
679 can be fit into 2210 3 times, resulting in a remainder of 173.
The number 3 becomes the next digit in our result. 
Result so far: 29145.13
The remainder is 173 after subtracting 2037 from 2210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Moving on to step 11:
679 goes into 1730 2 times with a remainder of 372.
Record the quotient 2 as the next digit in the result. 
Result so far: 29145.132
If we subtract 1358 from 1730, we get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Step 12:
679 can be fit into 3720 5 times, resulting in a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 29145.1325
Deduct 3395 from 3720 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Advancing to step 13:
679 can be fit into 3250 4 times, resulting in a remainder of 534.
Record the quotient 4 as the next digit in the result. 
Result so far: 29145.13254
Deduct 2716 from 3250 and we're left with 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Going ahead to step 14:
When dividing 5340 by 679, we get 7 with a remainder of 587.
Use 7 as the next digit of our solution. 
Result so far: 29145.132547
Subtracting 4753 from 5340 leaves us with 587.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5870, and continue the process.

Step 15:
679 can be fit into 5870 8 times, resulting in a remainder of 438.
Write down 8 as next digit of the result. 
Result so far: 29145.1325478
If we subtract 5432 from 5870, we get 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

On to step 16:
4380 divided by 679 is 6 with a remainder of 306.
The number 6 becomes the next digit in our result. 
Result so far: 29145.13254786
Subtracting 4074 from 4380 leaves us with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

After the division, we end up with 29145.13254786 and a remainder of 3.06e-07.