We look at the division of 3721599 by 13 
We want to figure out the number of times 3721599 can be divided by 13.

Step 1:
When dividing 3 by 13, we get 0 with 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.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 13

Advancing to step 2:
If we divide 37 by 13, we get 2 and a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 26 from 37 to get 11.
Fetch the next digit (2) from the dividend, attach it to 11 and continue: 112 / 13

On to step 3:
The number 13 fits into 112 8 times, leaving a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 28.0
Subtracting 104 from 112 leaves us with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 13

Step 4:
When dividing 81 by 13, we get 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 286.0
The remainder is 3 after subtracting 78 from 81.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 13

Going ahead to step 5:
13 goes into 35 2 times with a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 2862.0
Subtract 26 from 35 to get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 13

Let's proceed to step 6:
13 can be fit into 99 7 times, resulting in a remainder of 8.
The next digit of our result is 7. 
Result so far: 28627.0
If we subtract 91 from 99, we get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 13

Moving on to step 7:
89 divided by 13 is 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 286276.0
Subtracting 78 from 89 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 8:
If we divide 110 by 13, we get 8 and a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 286276.8
Subtract 104 from 110 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.

Let's proceed to step 9:
The number 13 fits into 60 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 286276.84
If we subtract 52 from 60, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
80 divided by 13 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 286276.846
If we take 78 away from 80, we end up 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.

Going ahead to step 11:
If we divide 20 by 13, we get 1 and a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 286276.8461
If we subtract 13 from 20, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 12:
The number 13 fits into 70 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 286276.84615
If we subtract 65 from 70, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 13:
13 can be fit into 50 3 times, resulting in a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 286276.846153
Deduct 39 from 50 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 14:
13 goes into 110 8 times with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 286276.8461538
Subtract 104 from 110 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 15:
If we divide 60 by 13, we get 4 and a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 286276.84615384
The remainder is 8 after subtracting 52 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 286276.84615384 with a remainder of 8e-09.