We divide 70139079 by 399
Our goal is to divide 70139079 by 399.

Advancing to step 1:
If we divide 7 by 399, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 399

Let's proceed to step 2:
399 goes into 70 0 times with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Bring next digit (1) of the dividend behind the 70 and repeat the process: 701 / 399

On to step 3:
The number 399 fits into 701 1 times, leaving a remainder of 302.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 399 from 701 and we're left with 302.
Append the next digit (3) from the dividend to 302 and continue with: 3023 / 399

Step 4:
When dividing 3023 by 399, we get 7 with a remainder of 230.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtracting 2793 from 3023 leaves us with 230.
Take the next digit (9) from the dividend and append it to 230, then repeat: 2309 / 399

Moving on to step 5:
If we divide 2309 by 399, we get 5 and a remainder of 314.
Put 5 as the next digit of the answer. 
Result so far: 175.0
The remainder is 314 after subtracting 1995 from 2309.
Include the next digit (0) from the dividend after 314, then repeat: 3140 / 399

Going ahead to step 6:
If we divide 3140 by 399, we get 7 and a remainder of 347.
The next digit of our result is 7. 
Result so far: 1757.0
Deduct 2793 from 3140 and we're left with 347.
Grab the next digit (7) from the dividend, add it to 347, then carry on: 3477 / 399

Going ahead to step 7:
The number 399 fits into 3477 8 times, leaving a remainder of 285.
The next digit of our result is 8. 
Result so far: 17578.0
Subtracting 3192 from 3477 leaves us with 285.
Grab the next digit (9) from the dividend, add it to 285, then carry on: 2859 / 399

Let's proceed to step 8:
When dividing 2859 by 399, we get 7 with a remainder of 66.
Use 7 as the next digit of our solution. 
Result so far: 175787.0
Subtracting 2793 from 2859 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 9:
660 divided by 399 is 1 with a remainder of 261.
Record the quotient 1 as the next digit in the result. 
Result so far: 175787.1
Subtract 399 from 660 to get 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

On to step 10:
When dividing 2610 by 399, we get 6 with a remainder of 216.
The next digit of our result is 6. 
Result so far: 175787.16
Deduct 2394 from 2610 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 11:
The number 399 fits into 2160 5 times, leaving a remainder of 165.
The next digit of our result is 5. 
Result so far: 175787.165
Subtracting 1995 from 2160 leaves us with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Step 12:
1650 divided by 399 is 4 with a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 175787.1654
Subtract 1596 from 1650 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 13:
When dividing 540 by 399, we get 1 with a remainder of 141.
Write down 1 as next digit of the result. 
Result so far: 175787.16541
Subtract 399 from 540 to get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Moving on to step 14:
399 can be fit into 1410 3 times, resulting in a remainder of 213.
Use 3 as the next digit of our solution. 
Result so far: 175787.165413
Subtracting 1197 from 1410 leaves us with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Going ahead to step 15:
If we divide 2130 by 399, we get 5 and a remainder of 135.
Put 5 as the next digit of the answer. 
Result so far: 175787.1654135
Subtracting 1995 from 2130 leaves us with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 16:
399 goes into 1350 3 times with a remainder of 153.
The number 3 becomes the next digit in our result. 
Result so far: 175787.16541353
The remainder is 153 after subtracting 1197 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

After the division, we end up with 175787.16541353 and a remainder of 1.53e-07.