We're dividing 51620169 by 406 
We're looking to find how many times 406 goes into 51620169.

Advancing to step 1:
The number 406 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 406

Moving on to step 2:
If we divide 51 by 406, we get 0 and a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Include the next digit (6) from the dividend after 51, then repeat: 516 / 406

On to step 3:
516 divided by 406 is 1 with a remainder of 110.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 406 from 516, we get 110.
Include the next digit (2) from the dividend after 110, then repeat: 1102 / 406

Advancing to step 4:
If we divide 1102 by 406, we get 2 and a remainder of 290.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Deduct 812 from 1102 and we're left with 290.
Take the next digit (0) from the dividend and append it to 290, then repeat: 2900 / 406

Step 5:
When dividing 2900 by 406, we get 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 127.0
Deduct 2842 from 2900 and we're left with 58.
Include the next digit (1) from the dividend after 58, then repeat: 581 / 406

Going ahead to step 6:
The number 406 fits into 581 1 times, leaving a remainder of 175.
The next digit of our result is 1. 
Result so far: 1271.0
Subtracting 406 from 581 leaves us with 175.
Take the next digit (6) from the dividend and append it to 175, then repeat: 1756 / 406

On to step 7:
When dividing 1756 by 406, we get 4 with a remainder of 132.
Use 4 as the next digit of our solution. 
Result so far: 12714.0
Subtracting 1624 from 1756 leaves us with 132.
Take the next digit (9) from the dividend and append it to 132, then repeat: 1329 / 406

Going ahead to step 8:
1329 divided by 406 is 3 with a remainder of 111.
Write down 3 as next digit of the result. 
Result so far: 127143.0
If we subtract 1218 from 1329, we get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Moving on to step 9:
If we divide 1110 by 406, we get 2 and a remainder of 298.
Record the quotient 2 as the next digit in the result. 
Result so far: 127143.2
The remainder is 298 after subtracting 812 from 1110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Going ahead to step 10:
406 goes into 2980 7 times with a remainder of 138.
The number 7 becomes the next digit in our result. 
Result so far: 127143.27
Deduct 2842 from 2980 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Going ahead to step 11:
1380 divided by 406 is 3 with a remainder of 162.
The next digit of our result is 3. 
Result so far: 127143.273
Subtracting 1218 from 1380 leaves us with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Advancing to step 12:
406 can be fit into 1620 3 times, resulting in a remainder of 402.
Record the quotient 3 as the next digit in the result. 
Result so far: 127143.2733
If we take 1218 away from 1620, we end up with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

The final outcome is 127143.2733, with a leftover of 0.00402.