17903945 divided by 121 
We want to divide 17903945 by 121.

Step 1:
If we divide 1 by 121, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 121

Advancing to step 2:
121 can be fit into 17 0 times, resulting in a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Include the next digit (9) from the dividend after 17, then repeat: 179 / 121

On to step 3:
121 can be fit into 179 1 times, resulting in a remainder of 58.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 121 away from 179, we end up with 58.
Fetch the next digit (0) from the dividend, attach it to 58 and continue: 580 / 121

Advancing to step 4:
121 goes into 580 4 times with a remainder of 96.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we take 484 away from 580, we end up with 96.
Bring next digit (3) of the dividend behind the 96 and repeat the process: 963 / 121

Let's proceed to step 5:
If we divide 963 by 121, we get 7 and a remainder of 116.
Record the quotient 7 as the next digit in the result. 
Result so far: 147.0
The remainder is 116 after subtracting 847 from 963.
Fetch the next digit (9) from the dividend, attach it to 116 and continue: 1169 / 121

Step 6:
1169 divided by 121 is 9 with a remainder of 80.
Put 9 as the next digit of the answer. 
Result so far: 1479.0
The remainder is 80 after subtracting 1089 from 1169.
Fetch the next digit (4) from the dividend, attach it to 80 and continue: 804 / 121

On to step 7:
If we divide 804 by 121, we get 6 and a remainder of 78.
Put 6 as the next digit of the answer. 
Result so far: 14796.0
Deduct 726 from 804 and we're left with 78.
Append the next digit (5) from the dividend to 78 and continue with: 785 / 121

Moving on to step 8:
If we divide 785 by 121, we get 6 and a remainder of 59.
Write down 6 as next digit of the result. 
Result so far: 147966.0
If we take 726 away from 785, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 9:
590 divided by 121 is 4 with a remainder of 106.
Record the quotient 4 as the next digit in the result. 
Result so far: 147966.4
The remainder is 106 after subtracting 484 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 10:
121 can be fit into 1060 8 times, resulting in a remainder of 92.
Record the quotient 8 as the next digit in the result. 
Result so far: 147966.48
If we subtract 968 from 1060, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 11:
121 can be fit into 920 7 times, resulting in a remainder of 73.
The next digit of our result is 7. 
Result so far: 147966.487
The remainder is 73 after subtracting 847 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 12:
The number 121 fits into 730 6 times, leaving a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 147966.4876
Subtracting 726 from 730 leaves us 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.

Moving on to step 13:
If we divide 40 by 121, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 147966.4876
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
121 goes into 400 3 times with a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 147966.487603
If we take 363 away from 400, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 15:
The number 121 fits into 370 3 times, leaving a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 147966.4876033
If we subtract 363 from 370, 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.

Our division results in 147966.4876033 with a remaining 7e-08.