We look at the division of 70069786 by 853 
We want to figure out the number of times 70069786 can be divided by 853.

Step 1:
The number 853 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 853

Moving on to step 2:
If we divide 70 by 853, we get 0 and a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Include the next digit (0) from the dividend after 70, then repeat: 700 / 853

On to step 3:
The number 853 fits into 700 0 times, leaving a remainder of 700.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 700 after subtracting 0 from 700.
Include the next digit (6) from the dividend after 700, then repeat: 7006 / 853

Step 4:
853 goes into 7006 8 times with a remainder of 182.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 6824 from 7006 leaves us with 182.
Take the next digit (9) from the dividend and append it to 182, then repeat: 1829 / 853

On to step 5:
1829 divided by 853 is 2 with a remainder of 123.
Put 2 as the next digit of the answer. 
Result so far: 82.0
Deduct 1706 from 1829 and we're left with 123.
Include the next digit (7) from the dividend after 123, then repeat: 1237 / 853

On to step 6:
The number 853 fits into 1237 1 times, leaving a remainder of 384.
The next digit of our result is 1. 
Result so far: 821.0
If we take 853 away from 1237, we end up with 384.
Append the next digit (8) from the dividend to 384 and continue with: 3848 / 853

Advancing to step 7:
The number 853 fits into 3848 4 times, leaving a remainder of 436.
Write down 4 as next digit of the result. 
Result so far: 8214.0
If we subtract 3412 from 3848, we get 436.
Include the next digit (6) from the dividend after 436, then repeat: 4366 / 853

On to step 8:
4366 divided by 853 is 5 with a remainder of 101.
Put 5 as the next digit of the answer. 
Result so far: 82145.0
If we take 4265 away from 4366, we end up with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Moving on to step 9:
1010 divided by 853 is 1 with a remainder of 157.
The next digit of our result is 1. 
Result so far: 82145.1
Deduct 853 from 1010 and we're left with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Going ahead to step 10:
When dividing 1570 by 853, we get 1 with a remainder of 717.
Record the quotient 1 as the next digit in the result. 
Result so far: 82145.11
Subtract 853 from 1570 to get 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

After the division, we end up with 82145.11 and a remainder of 0.717.