621658 divided by 70 
The aim is to understand the frequency of 70 in 621658.

Step 1:
When dividing 6 by 70, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 70

Going ahead to step 2:
70 can be fit into 62 0 times, resulting in a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 62, we end up with 62.
Bring next digit (1) of the dividend behind the 62 and repeat the process: 621 / 70

On to step 3:
70 goes into 621 8 times with a remainder of 61.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 560 from 621 and we're left with 61.
Include the next digit (6) from the dividend after 61, then repeat: 616 / 70

On to step 4:
616 divided by 70 is 8 with a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 88.0
Subtracting 560 from 616 leaves us with 56.
Grab the next digit (5) from the dividend, add it to 56, then carry on: 565 / 70

On to step 5:
70 can be fit into 565 8 times, resulting in a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 888.0
If we take 560 away from 565, we end up with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 70

On to step 6:
58 divided by 70 is 0 with a remainder of 58.
The next digit of our result is 0. 
Result so far: 8880.0
If we take 0 away from 58, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 7:
When dividing 580 by 70, we get 8 with a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 8880.8
If we take 560 away from 580, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
200 divided by 70 is 2 with a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 8880.82
Subtract 140 from 200 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 9:
When dividing 600 by 70, we get 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 8880.828
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
400 divided by 70 is 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 8880.8285
Subtract 350 from 400 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
If we divide 500 by 70, we get 7 and a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 8880.82857
If we take 490 away from 500, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 12:
70 can be fit into 100 1 times, resulting in a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 8880.828571
The remainder is 30 after subtracting 70 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 13:
70 can be fit into 300 4 times, resulting in a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 8880.8285714
Subtracting 280 from 300 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 14:
The number 70 fits into 200 2 times, leaving a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 8880.82857142
If we subtract 140 from 200, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Our division results in 8880.82857142 with a remaining 6e-08.