We divide 79121909 by 7
Our goal is to divide 79121909 by 7.

Advancing to step 1:
If we divide 7 by 7, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 7 from 7 to get 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 7

Step 2:
9 divided by 7 is 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 7 from 9 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 7

Moving on to step 3:
7 goes into 21 3 times with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 113.0
The remainder is 0 after subtracting 21 from 21.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 7

On to step 4:
The number 7 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 1130.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 7

Going ahead to step 5:
When dividing 21 by 7, we get 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 11303.0
If we subtract 21 from 21, we get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 7

Let's proceed to step 6:
9 divided by 7 is 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 113031.0
Deduct 7 from 9 and we're left with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 7

Advancing to step 7:
If we divide 20 by 7, we get 2 and a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 1130312.0
If we take 14 away from 20, we end up with 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 7

Moving on to step 8:
When dividing 69 by 7, we get 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 11303129.0
Subtract 63 from 69 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
60 divided by 7 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 11303129.8
If we subtract 56 from 60, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
The number 7 fits into 40 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 11303129.85
Deduct 35 from 40 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 11:
7 can be fit into 50 7 times, resulting in a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 11303129.857
If we take 49 away from 50, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 12:
When dividing 10 by 7, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 11303129.8571
Subtracting 7 from 10 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 13:
When dividing 30 by 7, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 11303129.85714
Deduct 28 from 30 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 14:
The number 7 fits into 20 2 times, leaving a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 11303129.857142
Subtract 14 from 20 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 15:
7 can be fit into 60 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 11303129.8571428
Deduct 56 from 60 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 16:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 11303129.85714285
If we take 35 away from 40, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 11303129.85714285, with a leftover of 5e-09.