We look at the division of 70398988 by 390 
Let's see how many times 390 fits into 70398988.

Going ahead to step 1:
The number 390 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.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 390

Let's proceed to step 2:
390 goes into 70 0 times with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Fetch the next digit (3) from the dividend, attach it to 70 and continue: 703 / 390

Going ahead to step 3:
If we divide 703 by 390, we get 1 and a remainder of 313.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 390 from 703, we get 313.
Include the next digit (9) from the dividend after 313, then repeat: 3139 / 390

Step 4:
The number 390 fits into 3139 8 times, leaving a remainder of 19.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 3120 from 3139 leaves us with 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 390

Going ahead to step 5:
390 goes into 198 0 times with a remainder of 198.
Write down 0 as next digit of the result. 
Result so far: 180.0
Deduct 0 from 198 and we're left with 198.
Fetch the next digit (9) from the dividend, attach it to 198 and continue: 1989 / 390

Going ahead to step 6:
The number 390 fits into 1989 5 times, leaving a remainder of 39.
Use 5 as the next digit of our solution. 
Result so far: 1805.0
Subtract 1950 from 1989 to get 39.
Grab the next digit (8) from the dividend, add it to 39, then carry on: 398 / 390

On to step 7:
398 divided by 390 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 18051.0
If we subtract 390 from 398, we get 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 390

Going ahead to step 8:
390 goes into 88 0 times with a remainder of 88.
Record the quotient 0 as the next digit in the result. 
Result so far: 180510.0
Subtract 0 from 88 to get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 9:
If we divide 880 by 390, we get 2 and a remainder of 100.
The next digit of our result is 2. 
Result so far: 180510.2
Subtracting 780 from 880 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 10:
390 goes into 1000 2 times with a remainder of 220.
The number 2 becomes the next digit in our result. 
Result so far: 180510.22
Subtracting 780 from 1000 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The quotient of the division is 180510.22, and the remainder is 0.22.