73687509 ÷ 105 
Our goal is to divide 73687509 by 105.

Moving on to step 1:
If we divide 7 by 105, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 105

Advancing to step 2:
When dividing 73 by 105, we get 0 with a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Include the next digit (6) from the dividend after 73, then repeat: 736 / 105

Let's proceed to step 3:
105 goes into 736 7 times with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 735 from 736, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 105

Let's proceed to step 4:
The number 105 fits into 18 0 times, leaving a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 70.0
Subtract 0 from 18 to get 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 105

Step 5:
If we divide 187 by 105, we get 1 and a remainder of 82.
The next digit of our result is 1. 
Result so far: 701.0
The remainder is 82 after subtracting 105 from 187.
Take the next digit (5) from the dividend and append it to 82, then repeat: 825 / 105

Advancing to step 6:
825 divided by 105 is 7 with a remainder of 90.
Put 7 as the next digit of the answer. 
Result so far: 7017.0
If we take 735 away from 825, we end up with 90.
Fetch the next digit (0) from the dividend, attach it to 90 and continue: 900 / 105

On to step 7:
105 can be fit into 900 8 times, resulting in a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 70178.0
Deduct 840 from 900 and we're left with 60.
Grab the next digit (9) from the dividend, add it to 60, then carry on: 609 / 105

Step 8:
105 goes into 609 5 times with a remainder of 84.
Record the quotient 5 as the next digit in the result. 
Result so far: 701785.0
Subtract 525 from 609 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 9:
840 divided by 105 is 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 701785.8
Subtract 840 from 840 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.

Step 10:
When dividing 0 by 105, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 701785.8
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.

Going ahead to step 11:
105 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 701785.8
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 701785.8 with a remaining 0.0.