We look at the division of 31399207 by 7 
We're looking to find how many times 7 goes into 31399207.

On to step 1:
The number 7 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 7

Advancing to step 2:
7 goes into 31 4 times with a remainder of 3.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 28 from 31 leaves us with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 7

Going ahead to step 3:
7 can be fit into 33 4 times, resulting in a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 44.0
If we take 28 away from 33, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 7

Going ahead to step 4:
59 divided by 7 is 8 with a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 448.0
Subtracting 56 from 59 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 7

On to step 5:
When dividing 39 by 7, we get 5 with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 4485.0
Deduct 35 from 39 and we're left with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 7

Step 6:
7 goes into 42 6 times with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 44856.0
Subtracting 42 from 42 leaves us with 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 7

Going ahead to step 7:
If we divide 0 by 7, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 448560.0
The remainder is 0 after subtracting 0 from 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 7

Going ahead to step 8:
When dividing 7 by 7, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 4485601.0
The remainder is 0 after subtracting 7 from 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
If we divide 0 by 7, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 4485601.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
The number 7 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4485601.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 4485601.0, and the remainder is 0.0.