We're dividing 663898 by 70 
We want to figure out the number of times 663898 can be divided by 70.

Let's proceed to step 1:
6 divided by 70 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 70

Step 2:
If we divide 66 by 70, we get 0 and a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Grab the next digit (3) from the dividend, add it to 66, then carry on: 663 / 70

Advancing to step 3:
70 goes into 663 9 times with a remainder of 33.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 630 from 663 to get 33.
Bring next digit (8) of the dividend behind the 33 and repeat the process: 338 / 70

Let's proceed to step 4:
70 can be fit into 338 4 times, resulting in a remainder of 58.
Use 4 as the next digit of our solution. 
Result so far: 94.0
Deduct 280 from 338 and we're left with 58.
Include the next digit (9) from the dividend after 58, then repeat: 589 / 70

Going ahead to step 5:
70 goes into 589 8 times with a remainder of 29.
The next digit of our result is 8. 
Result so far: 948.0
Deduct 560 from 589 and we're left with 29.
Append the next digit (8) from the dividend to 29 and continue with: 298 / 70

Moving on to step 6:
When dividing 298 by 70, we get 4 with a remainder of 18.
The next digit of our result is 4. 
Result so far: 9484.0
Deduct 280 from 298 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.

Step 7:
The number 70 fits into 180 2 times, leaving a remainder of 40.
The next digit of our result is 2. 
Result so far: 9484.2
If we subtract 140 from 180, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 8:
400 divided by 70 is 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 9484.25
The remainder is 50 after subtracting 350 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
If we divide 500 by 70, we get 7 and a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 9484.257
Deduct 490 from 500 and we're left 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 10:
If we divide 100 by 70, we get 1 and a remainder of 30.
Record the quotient 1 as the next digit in the result. 
Result so far: 9484.2571
If we take 70 away from 100, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
When dividing 300 by 70, we get 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 9484.25714
If we take 280 away from 300, 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.

Step 12:
If we divide 200 by 70, we get 2 and a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 9484.257142
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.

On to step 13:
70 can be fit into 600 8 times, resulting in a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 9484.2571428
If we subtract 560 from 600, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
When dividing 400 by 70, we get 5 with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 9484.25714285
Deduct 350 from 400 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 9484.25714285, with a leftover of 5e-08.