We divide 641398 by 70
We want to figure out the number of times 641398 can be divided by 70.

Step 1:
If we divide 6 by 70, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 70

Moving on to step 2:
If we divide 64 by 70, we get 0 and a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Include the next digit (1) from the dividend after 64, then repeat: 641 / 70

Let's proceed to step 3:
When dividing 641 by 70, we get 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 630 from 641 to get 11.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 70

Let's proceed to step 4:
When dividing 113 by 70, we get 1 with a remainder of 43.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Subtracting 70 from 113 leaves us with 43.
Append the next digit (9) from the dividend to 43 and continue with: 439 / 70

Moving on to step 5:
The number 70 fits into 439 6 times, leaving a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 916.0
If we subtract 420 from 439, we get 19.
Take the next digit (8) from the dividend and append it to 19, then repeat: 198 / 70

Step 6:
198 divided by 70 is 2 with a remainder of 58.
The next digit of our result is 2. 
Result so far: 9162.0
If we subtract 140 from 198, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 7:
70 can be fit into 580 8 times, resulting in a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 9162.8
If we subtract 560 from 580, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
When dividing 200 by 70, we get 2 with a remainder of 60.
The next digit of our result is 2. 
Result so far: 9162.82
The remainder is 60 after subtracting 140 from 200.
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 9:
600 divided by 70 is 8 with a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 9162.828
If we take 560 away from 600, we end up 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.

Going ahead to step 10:
70 goes into 400 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 9162.8285
Subtracting 350 from 400 leaves us 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.

On to step 11:
When dividing 500 by 70, we get 7 with a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 9162.82857
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.

Step 12:
100 divided by 70 is 1 with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 9162.828571
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.
The next digit of our result is 4. 
Result so far: 9162.8285714
If we subtract 280 from 300, we get 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 14:
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: 9162.82857142
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.

After the division, we end up with 9162.82857142 and a remainder of 6e-08.